|
Search: id:A139059
|
|
|
| A139059 |
|
a(n) = primes of the form (5+k!)/5. |
|
+0 43
|
|
| 1009, 72577, 7983361, 17435658241, 24329020081766401, 5170403347776995328001, 23924444173096038912392632299131543012876746752000000001
(list; graph; listen)
|
|
|
OFFSET
|
1,1
|
|
|
COMMENT
|
Numbers k for which (5+k!)/5 is prime see A139058
|
|
MATHEMATICA
|
a = {}; Do[If[PrimeQ[(n! + 5)/5], AppendTo[a, (n! + 5)/5]], {n, 1, 50}]; a
|
|
CROSSREFS
|
Cf. A082672, A089085, A089130, A117141, A007749, A139056, A139057, A139058, A139059, A139060, A139061, A139061, A139062, A139063, A139064, A139065, A139066, A020458.
Sequence in context: A117359 A096210 A133584 this_sequence A123156 A082461 A071998
Adjacent sequences: A139056 A139057 A139058 this_sequence A139060 A139061 A139062
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
Artur Jasinski (grafix(AT)csl.pl), Apr 07 2008
|
|
|
Search completed in 0.002 seconds
|