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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 51
Riesel primes k•2n-1 k-value 3,844
Riesel primes k•bn-1, b>2 base 12
Proth primes k•2n+1 k-value 159
Proth primes k•bn+1, b>2 base 9
Carol-Kynea primes (bn±1)2-2 base 382
Williams primes (b-1)•bn-1 base 169
Williams primes (b-1)•bn+1 base 154
Williams primes (b+1)•bn-1 base 87
Williams primes (b+1)•bn+1 base 82
Leyland numbers xy+yx number 1,814
Leyland numbers xy-yx number 1
Woodall primes n•bn-1 base 775
Near Woodall primes (n-1)•bn-1 base 4
Near Woodall primes (n+1)•bn-1 base 3
Cullen primes n•bn+1 base 139
Near Cullen primes (n-1)•bn+1 base 1
Near Cullen primes (n+1)•bn+1 base 1
Fermat numbers F(2) number 150
GF Divisors (2) number 185
Gen.Fermat numbers xGF(3) number 21
GF Divisors (3) number 204
Gen.Fermat numbers xGF(4) number 4
GF Divisors (4) number 64
Gen.Fermat numbers xGF(5) number 15
GF Divisors (5) number 369
Gen.Fermat numbers xGF(6) number 11
GF Divisors (6) number 149
Gen.Fermat numbers xGF(7) number 26
GF Divisors (7) number 454
Gen.Fermat numbers xGF(8) number 23
GF Divisors (8) number 372
Gen.Fermat numbers xGF(9) number 17
GF Divisors (9) number 357
Gen.Fermat numbers xGF(10) number 18
GF Divisors (10) number 282
Gen.Fermat numbers xGF(11) number 45
GF Divisors (11) number 758
Gen.Fermat numbers xGF(12) number 14
GF Divisors (12) number 316
all GF Divisors number 1209
Number classes
General numbers
Special numbers
Prime numbers
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