Riesel primes of the form 8•3ⁿ-1

Current data

`k` , `b` :	8 , 3
Count :	22
Nash :	1983
Max `n` :	200,000
Date :	2016-02-02

1, 2^[1], 4^[2], 10^[3], 17, 50^[4], 170^[5], 184^[6], 194^[7], 209, 641, 1298^[8], 4034^[9], 5956^[10], 7154^[11], 9970^[12], 35956^[13], 42730^[14], 132004^[15], 190610^[16], 284398^[17], 896701

Remarks :

See the sequence A005541 in OEIS
For additional even n history, see Williams 8•9ⁿ-1.

Notes

History

2016-02-02: Checked n = 200000 - 400000 only even n, Robert Price, from Williams 8•9ⁿ-1
2014-03-16: Checked n = 12000 - 200000, Robert Price
2014-03-16: Found n = 35956, 42730, 132004, 190610, Robert Price
2010-09-18: Found n = 896701, Serge Batalov
1972?: Checked to n = 12000, Douglas Burke

[1] Williams 8•9¹-1

[2] Williams 8•9²-1

[3] Williams 8•9⁵-1

[4] Williams 8•9²⁵-1

[5] Williams 8•9⁸⁵-1

[6] Williams 8•9⁹²-1

[7] Williams 8•9⁹⁷-1

[8] Williams 8•9⁶⁴⁹-1

[9] Williams 8•9²⁰¹⁷-1

[10] Williams 8•9²⁹⁷⁸-1

[11] Williams 8•9³⁵⁷⁷-1

[12] Williams 8•9⁴⁹⁸⁵-1

[13] Williams 8•9¹⁷⁹⁷⁸-1

[14] Williams 8•9²¹³⁶⁵-1

[15] Williams 8•9⁶⁶⁰⁰²-1

[16] Williams 8•9⁹⁵³⁰⁵-1

[17] Williams 8•9¹⁴²¹⁹⁹-1

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Riesel primes of the form 8•3ⁿ-1

Current data

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Riesel primes of the form 8•3n-1

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Riesel primes of the form 8•3ⁿ-1