login
A139070
Primes of the form (10+k!)/10.
34
13, 73, 3991681, 47900161, 130767436801, 2585201673888497664001, 40329146112660563558400001, 1376375309122634504631597958158090240000001, 11962222086548019456196316149565771506438373376000000001
OFFSET
1,1
COMMENTS
For numbers k for which (10+k!)/10 is prime see A139071.
LINKS
FORMULA
a(n) = A139157(A139071(n)). - Amiram Eldar, Oct 14 2024
MATHEMATICA
a = {}; Do[If[PrimeQ[(n! + 10)/10], AppendTo[a, [(n! + 10)/10]], {n, 1, 50}]; a
Select[(Range[50]!+10)/10, PrimeQ] (* Harvey P. Dale, Sep 18 2013 *)
PROG
(PARI) for(k=5, 1e3, if(ispseudoprime(t=k!/10+1), print1(t", "))) \\ Charles R Greathouse IV, Jul 15 2011
KEYWORD
nonn
AUTHOR
Artur Jasinski, Apr 07 2008
STATUS
approved