This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A139071 #14 Nov 08 2016 17:02:50
%S A139071 5,6,11,12,15,23,26,37,45,108,112,129,137,148,172,248,760,807,975,
%T A139071 1398,5231,8765,24182
%N A139071 Numbers k for which (10+k!)/10 is prime.
%C A139071 Primes of the form (10+k!)/10 see A139070.
%C A139071 a(24) > 25000. - _Robert Price_, Nov 08 2016
%t A139071 a = {}; Do[If[PrimeQ[(n! + 10)/10], AppendTo[a, n]], {n, 1, 500}]; a
%o A139071 (PARI) for(k=5,1e3,if(ispseudoprime(k!/10+1),print1(k", "))) \\ _Charles R Greathouse IV_, Jul 15 2011
%Y A139071 Cf. A082672, A089085, A089130, A117141, A007749, A139056, A139057, A139058, A139059, A139060, A139061, A139061, A139062, A139063, A139064, A139065, A139066, A020458, A139068, A137390, A139070, A139071, A139072.
%Y A139071 Cf. n!/m-1 is a prime: A002982, A082671, A139056, A139199-A139205; n!/m+1 is a prime: A002981, A082672, A089085, A139061, A139058, A139063, A139065, A151913, A137390, A139071 (1<=m<=10).
%K A139071 nonn
%O A139071 1,1
%A A139071 _Artur Jasinski_, Apr 07 2008
%E A139071 More terms from _Serge Batalov_, Feb 18 2015
%E A139071 a(22)-a(23) from _Robert Price_, Nov 08 2016