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 A139064 Primes of the form (7+k!)/7. 11
 5702401, 186810624001, 2988969984001, 2215887149047283712000001, 1476163995198020704238093048217600000001, 19811874077955690819705574245769915192271839538955347505831613562880000000000001 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Numbers k for which (7+k!)/7 is prime (see A139065). LINKS Table of n, a(n) for n=1..6. MATHEMATICA a = {}; Do[If[PrimeQ[(n! + 7)/7], AppendTo[a, (n! + 7)/7]], {n, 1, 50}]; a PROG (PARI) for(k=7, 1e3, if(ispseudoprime(t=k!/7+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: A246055 A210353 A205045 * A151655 A283445 A234256 Adjacent sequences: A139061 A139062 A139063 * A139065 A139066 A139067 KEYWORD nonn AUTHOR Artur Jasinski, Apr 07 2008 STATUS approved

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Last modified December 1 23:26 EST 2023. Contains 367503 sequences. (Running on oeis4.)