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 A114045 #4 Mar 03 2023 23:16:49 %S A114045 0,1,2,6,2880 %N A114045 a(n) = n*a(n-1)! with a(0) = 0, a(1) = 1. %C A114045 The next term is too large to include. %e A114045 If n=4, then a(4) = 4*a(3)! = 4*6! = 2880. %Y A114045 Cf. A114020, A000045. %K A114045 nonn %O A114045 0,3 %A A114045 _Parthasarathy Nambi_, Feb 01 2006