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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 170
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 152
GF Divisors (2) number 188
Gen.Fermat numbers xGF(3) number 21
GF Divisors (3) number 206
Gen.Fermat numbers xGF(4) number 5
GF Divisors (4) number 65
Gen.Fermat numbers xGF(5) number 22
GF Divisors (5) number 384
Gen.Fermat numbers xGF(6) number 14
GF Divisors (6) number 157
Gen.Fermat numbers xGF(7) number 36
GF Divisors (7) number 482
Gen.Fermat numbers xGF(8) number 26
GF Divisors (8) number 387
Gen.Fermat numbers xGF(9) number 21
GF Divisors (9) number 370
Gen.Fermat numbers xGF(10) number 23
GF Divisors (10) number 295
Gen.Fermat numbers xGF(11) number 60
GF Divisors (11) number 804
Gen.Fermat numbers xGF(12) number 21
GF Divisors (12) number 335
all GF Divisors number 1359
Number classes
General numbers
Special numbers
Prime numbers
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