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 A139068 Primes of the form k!/9 + 1. 35
 4481, 611402462201343216650033936533361654773516861440000000001, 234195255375503079690400057633265510581087082006817356924774723468294901747510352675631491470712754833859385753600000000000000000001 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS For numbers k for which (9+k!)/9 is prime see A137390. LINKS Table of n, a(n) for n=1..3. MATHEMATICA a = {}; Do[If[PrimeQ[(n! + 9)/9], AppendTo[a, [(n! + 9)/9]], {n, 1, 150}]; a Select[Range[100]!/9+1, PrimeQ] (* Harvey P. Dale, Aug 17 2017 *) PROG (PARI) for(n=6, 1e4, if(ispseudoprime(t=n!/9+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, A139068, A137390, A139070, A139071, A139072. Sequence in context: A235890 A237775 A179161 * A232200 A345600 A345859 Adjacent sequences: A139065 A139066 A139067 * A139069 A139070 A139071 KEYWORD nonn,bref AUTHOR Artur Jasinski, Apr 07 2008 STATUS approved

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Last modified September 21 02:47 EDT 2023. Contains 365486 sequences. (Running on oeis4.)