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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
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
Sequence in context: A235890 A237775 A179161 * A232200 A345600 A345859
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.)