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 A180631 #13 Jul 04 2024 16:18:31
%S A180631 2,3,4,33,55,95,110,148,170,612,1155,2295,2473,4143,5671
%N A180631 Numbers k such that 10*k! - 1 is prime.
%C A180631 a(16) > 12000. - _Michael S. Branicky_, Jul 04 2024
%H A180631 <a href="/index/Pri#primepop">Index entries for sequences related to numbers of primes of the form k*n!+-1</a>
%t A180631 fQ[n_] := PrimeQ[10 n! - 1]; k = 0; lst = {}; While[k < 1501, If[ fQ@k, AppendTo[lst, k]; Print@k]; k++ ]; lst
%Y A180631 Cf. A002982, A076133, A076134, A099350, A099351, A180627, A180628, A180630, A180630.
%K A180631 nonn,more
%O A180631 1,1
%A A180631 _Robert G. Wilson v_, Sep 13 2010
%E A180631 a(12)-a(14) from _Jinyuan Wang_, Feb 04 2020
%E A180631 a(15) from _Michael S. Branicky_, Jul 03 2024