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 A123909 #5 Jul 17 2025 21:45:29
%S A123909 13,17,131,5051,3628811
%N A123909 Primes of the form k!+11.
%C A123909 Corresponding numbers k such that k!+11 is prime are {2, 3, 5, 7, 10}.
%t A123909 Select[Table[n!+11,{n,1,1000}],PrimeQ[ # ]&]
%Y A123909 Cf. A088332 - Primes of the form n!+1.
%K A123909 fini,nonn
%O A123909 1,1
%A A123909 _Alexander Adamchuk_, Oct 28 2006