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Revision as of 23:37, 19 April 2023

Countings: Sequences per type

Sequences (per base, k-value or individual number) with own page in this Wiki:

Sequence Type counting
Mersenne primes number 52
Riesel primes k•2n-1 k-value 3,923
Riesel primes k•bn-1, b>2 base 10
Proth primes k•2n+1 k-value 199
Proth primes k•bn+1, b>2 base 10
Carol-Kynea primes (bn±1)2-2 base 382
Williams primes (b-1)•bn-1 base 214
Williams primes (b-1)•bn+1 base 189
Williams primes (b+1)•bn-1 base 128
Williams primes (b+1)•bn+1 base 110
Leyland numbers xy+yx number 1,814
Leyland numbers xy-yx number 1
Woodall primes n•bn-1 base 776
Near Woodall primes (n-1)•bn-1 base 4
Near Woodall primes (n+1)•bn-1 base 3
Cullen primes n•bn+1 base 241
Near Cullen primes (n-1)•bn+1 base 1
Near Cullen primes (n+1)•bn+1 base 1
Fermat numbers F(2) number 152
GF Divisors (2) number 189
Gen.Fermat numbers xGF(3) number 22
GF Divisors (3) number 207
Gen.Fermat numbers xGF(4) number 5
GF Divisors (4) number 65
Gen.Fermat numbers xGF(5) number 26
GF Divisors (5) number 393
Gen.Fermat numbers xGF(6) number 15
GF Divisors (6) number 159
Gen.Fermat numbers xGF(7) number 38
GF Divisors (7) number 488
Gen.Fermat numbers xGF(8) number 30
GF Divisors (8) number 394
Gen.Fermat numbers xGF(9) number 25
GF Divisors (9) number 377
Gen.Fermat numbers xGF(10) number 27
GF Divisors (10) number 306
Gen.Fermat numbers xGF(11) number 69
GF Divisors (11) number 824
Gen.Fermat numbers xGF(12) number 26
GF Divisors (12) number 344
all GF Divisors number 1432
Number classes
General numbers
Special numbers
Prime numbers
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