Difference between revisions of "Woodall prime 4"

Revision as of 15:00, 9 July 2020

Current data

ASCII format :	n*4^n-1
Base :	4
Count :	21
Max `n` :	2,000,000
Date :	2015

1^[1], 2^[2], 3^[3], 5^[4], 8^[5], 14^[6], 23^[7], 63^[8], 107^[9], 132^[10], 428^[11], 530^[12], 1137^[13], 1973^[14], 2000^[15], 7064^[16], 20747^[17], 79574^[18], 113570^[19], 293912^[20], 1993191^[21]

Remarks :

The sequence A086661 in OEIS

Notes

↑ Twin n=1, 2²-1, Near Woodall: 2•2¹-1 & 1•2²-1
↑ 2⁵-1, Near Woodall: 4•2³-1
↑ Twin n=3, 3•2⁶-1, Near Woodall: 6•2⁵-1
↑ 5•2¹⁰-1, Near Woodall: 10•2⁹-1
↑ 2¹⁹-1, Near Woodall: 16•2¹⁵-1
↑ 7•2²⁹-1, Near Woodall: 28•2²⁷-1
↑ 23•2⁴⁶-1, Near Woodall: 46•2⁴⁵-1
↑ 63•2¹²⁶-1, Near Woodall: 126•2¹²⁵-1
↑ 107•2²¹⁴-1, Near Woodall: 214•2²¹³-1
↑ 33•2²⁶⁶-1, Near Woodall: 264•2²⁶³-1
↑ 107•2⁸⁵⁸-1, Near Woodall: 856•2⁸⁵⁵-1
↑ 265•2¹⁰⁶¹-1, Near Woodall: 1060•2¹⁰⁵⁹-1
↑ 1137•2²²⁷⁴-1, Near Woodall: 2274•2²²⁷³-1
↑ 1973•2³⁹⁴⁶-1, Near Woodall: 3946•2³⁹⁴⁵-1
↑ 125•2⁴⁰⁰⁴-1, Near Woodall: 4000•2³⁹⁹⁹-1
↑ 883•2¹⁴¹³¹-1, Near Woodall: 14128•2¹⁴¹²⁷-1
↑ 20747•2⁴¹⁴⁹⁴-1, Near Woodall: 41494•2⁴¹⁴⁹³-1
↑ 39787•2¹⁵⁹¹⁴⁹-1, Near Woodall: 159148•2¹⁵⁹¹⁴⁷-1
↑ 56785•2²²⁷¹⁴¹-1, Near Woodall: 227140•2²²⁷¹³⁹-1
↑ 36739•2⁵⁸⁷⁸²⁷-1, Near Woodall: 587824•2⁵⁸⁷⁸²³-1
↑ 1993191•2^3986382-1, Near Woodall: 3986382•2^3986381-1

History

2015-05-01: Found n = 1993191, Serge Batalov
2009-09-11: Found n = 293912, Steven Harvey
2000-07-28: Found n = 113570, Ray Ballinger
2000-05-19: Found n = 79574, Ray Ballinger
1998-07-03: Found n = 20747, Henri Lifchitz
1998-07-03: Found n = 7064, Henri Lifchitz
1998-07-03: Found n = 2000, Henri Lifchitz
1998-07-03: Found n = 1973, Henri Lifchitz

[1] Twin n=1, 2²-1, Near Woodall: 2•2¹-1 & 1•2²-1

[2] 2⁵-1, Near Woodall: 4•2³-1

[3] Twin n=3, 3•2⁶-1, Near Woodall: 6•2⁵-1

[4] 5•2¹⁰-1, Near Woodall: 10•2⁹-1

[5] 2¹⁹-1, Near Woodall: 16•2¹⁵-1

[6] 7•2²⁹-1, Near Woodall: 28•2²⁷-1

[7] 23•2⁴⁶-1, Near Woodall: 46•2⁴⁵-1

[8] 63•2¹²⁶-1, Near Woodall: 126•2¹²⁵-1

[9] 107•2²¹⁴-1, Near Woodall: 214•2²¹³-1

[10] 33•2²⁶⁶-1, Near Woodall: 264•2²⁶³-1

[11] 107•2⁸⁵⁸-1, Near Woodall: 856•2⁸⁵⁵-1

[12] 265•2¹⁰⁶¹-1, Near Woodall: 1060•2¹⁰⁵⁹-1

[13] 1137•2²²⁷⁴-1, Near Woodall: 2274•2²²⁷³-1

[14] 1973•2³⁹⁴⁶-1, Near Woodall: 3946•2³⁹⁴⁵-1

[15] 125•2⁴⁰⁰⁴-1, Near Woodall: 4000•2³⁹⁹⁹-1

[16] 883•2¹⁴¹³¹-1, Near Woodall: 14128•2¹⁴¹²⁷-1

[17] 20747•2⁴¹⁴⁹⁴-1, Near Woodall: 41494•2⁴¹⁴⁹³-1

[18] 39787•2¹⁵⁹¹⁴⁹-1, Near Woodall: 159148•2¹⁵⁹¹⁴⁷-1

[19] 56785•2²²⁷¹⁴¹-1, Near Woodall: 227140•2²²⁷¹³⁹-1

[20] 36739•2⁵⁸⁷⁸²⁷-1, Near Woodall: 587824•2⁵⁸⁷⁸²³-1

[21] 1993191•2^3986382-1, Near Woodall: 3986382•2^3986381-1

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@@ Line 12: / Line 12: @@
 ;C:[[Riesel prime 7|{{Kbn|7|29}}]], Near Woodall: {{Kbn|28|27}}
 ;C:[[Riesel prime 23|{{Kbn|23|46}}]], Near Woodall: {{Kbn|46|45}}
-;C:{{Kbn|63|126}}, Near Woodall: {{Kbn|126|125}}
+;C:[[Riesel prime 63|{{Kbn|63|126}}]], Near Woodall: {{Kbn|126|125}}
-;C:{{Kbn|107|214}}, Near Woodall: {{Kbn|214|213}}
+;C:[[Riesel prime 107|{{Kbn|107|214}}]], Near Woodall: {{Kbn|214|213}}
-;C:{{Kbn|33|266}}, Near Woodall: {{Kbn|264|263}}
+;C:[[Riesel prime 33|{{Kbn|33|266}}]], Near Woodall: {{Kbn|264|263}}
-;C:{{Kbn|107|858}}, Near Woodall: {{Kbn|856|855}}
+;C:[[Riesel prime 107|{{Kbn|107|858}}]], Near Woodall: {{Kbn|856|855}}
-;C:{{Kbn|265|1061}}, Near Woodall: {{Kbn|1060|1059}}
+;C:[[Riesel prime 265|{{Kbn|265|1061}}]], Near Woodall: {{Kbn|1060|1059}}
-;C:{{Kbn|1137|2274}}, Near Woodall: {{Kbn|2274|2273}}
+;C:[[Riesel prime 1137|{{Kbn|1137|2274}}]], Near Woodall: {{Kbn|2274|2273}}
-;47591;C:{{Kbn|1973|3946}}, Near Woodall: {{Kbn|3946|3945}}
+;47591;C:[[Riesel prime 1973|{{Kbn|1973|3946}}]], Near Woodall: {{Kbn|3946|3945}}
-;46892;C:{{Kbn|125|4004}}, Near Woodall: {{Kbn|4000|3999}}
+;46892;C:[[Riesel prime 125|{{Kbn|125|4004}}]], Near Woodall: {{Kbn|4000|3999}}
-;27021;C:{{Kbn|883|14131}}, Near Woodall: {{Kbn|14128|14127}}
+;27021;C:[[Riesel prime 883|{{Kbn|883|14131}}]], Near Woodall: {{Kbn|14128|14127}}
-;15177;C:{{Kbn|20747|41494}}, Near Woodall: {{Kbn|41494|41493}}
+;15177;C:[[Riesel prime 20747|{{Kbn|20747|41494}}]], Near Woodall: {{Kbn|41494|41493}}
-;1152;C:{{Kbn|39787|159149}}, Near Woodall: {{Kbn|159148|159147}}
+;1152;C:[[Riesel prime 39787|{{Kbn|39787|159149}}]], Near Woodall: {{Kbn|159148|159147}}
-;356;C:{{Kbn|56785|227141}}, Near Woodall: {{Kbn|227140|227139}}
+;356;C:[[Riesel prime 56785|{{Kbn|56785|227141}}]], Near Woodall: {{Kbn|227140|227139}}
-;89940;C:{{Kbn|36739|587827}}, Near Woodall: {{Kbn|587824|587823}}
+;89940;C:[[Riesel prime 36739|{{Kbn|36739|587827}}]], Near Woodall: {{Kbn|587824|587823}}
-1993191;119835;C:{{Kbn|1993191|3986382}}, Near Woodall: {{Kbn|3986382|3986381}}
+1993191;119835;C:[[Riesel prime 1993191|{{Kbn|1993191|3986382}}]], Near Woodall: {{Kbn|3986382|3986381}}
 |WoRemarks=The {{OEIS|l|A086661}}
 }}

Difference between revisions of "Woodall prime 4"

Revision as of 15:00, 9 July 2020

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