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 A348960 #43 Dec 24 2024 22:11:29 %S A348960 0,0,0,1,1,2,3,4,5,6,7,8,9,10,11,12,13,15,16,17,18,20,21,22,24,25,27, %T A348960 28,29,31,32,34,35,37,38,40,42,43,45,46,48,50,51,53,54,56,58,59,61,63, %U A348960 64,66,68,70,71,73,75,77,78,80,82,84,85,87,89,91,93,95,96,98,100 %N A348960 a(n) = floor(log_10(Pi*n!)). %F A348960 a(n) = floor(log_10(Pi*n!)). %F A348960 a(n) = floor(A053511 + log_10(n!)). %t A348960 Array[Floor@ Log10[Pi*#!] &, 71, 0] (* _Michael De Vlieger_, Nov 05 2021 *) %Y A348960 Cf. A004216, A034886, A053511. %K A348960 nonn %O A348960 0,6 %A A348960 _Paul F. Marrero Romero_, Nov 05 2021