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 A109132 #7 Dec 15 2017 17:36:52 %S A109132 0,1,2,3,11,77 %N A109132 Numbers n such that n! + 1 is a Chen prime. n! + 1 is then called a factorial Chen prime. %C A109132 Conjecture: 77! + 1 is the largest factorial Chen prime. %C A109132 For n>2, n is in the sequence iff both numbers n!/3+1 and n!+1 are primes. - _Farideh Firoozbakht_, Mar 24 2006 %Y A109132 Cf. A002981, A109611. %K A109132 hard,more,nonn %O A109132 1,3 %A A109132 _Jason Earls_, Aug 17 2005