|
| |
|
|
A139062
|
|
Primes of the form (6+k!)/6.
|
|
43
| | |
|
|
|
OFFSET
| 1,1
|
|
|
COMMENTS
| Numbers k for which (4+k!)/4 is prime see A139063.
|
|
|
MATHEMATICA
| a = {}; Do[If[PrimeQ[(n! + 6)/6], AppendTo[a, (n! + 6)/6]], {n, 1, 50}]; a
|
|
|
PROG
| (PARI) for(k=3, 1e3, if(ispseudoprime(t=k!/6+1), print1(t", "))) \\ Charles R Greathouse IV, Jul 15 2011
|
|
|
CROSSREFS
| Cf. A082672, A089085, A089130, A117141, A007749, A139056, A139057, A139058, A139059, A139060, A139061, A139061, A139062, A139063, A139064, A139065, A139066, A020458.
Sequence in context: A115893 A057678 A090071 * A122760 A186502 A165733
Adjacent sequences: A139059 A139060 A139061 * A139063 A139064 A139065
|
|
|
KEYWORD
| nonn
|
|
|
AUTHOR
| Artur Jasinski (grafix(AT)csl.pl), Apr 07 2008
|
| |
|
|
