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 A385950 #12 Jul 31 2025 22:46:27 %S A385950 1,1,1,3,12,58,344,2405,19238,173138,1731378,19045154,228541845, %T A385950 2971043978,41594615682,623919235225,9982707763599,169706031981174, %U A385950 3054708575661119,58039462937561246,1160789258751224920,24376574433775723304,536284637543065912676 %N A385950 Number of digits in 3^(n!). %F A385950 a(n) = A055642(A100731(n)). %t A385950 Array[Floor[#! Log10@3+1]&,22] %Y A385950 Cf. A055642, A100731. %Y A385950 Subsequence of A034888. %K A385950 nonn,base %O A385950 0,4 %A A385950 _Vincenzo Librandi_, Jul 27 2025