A385950 Number of digits in 3^(n!).

1, 1, 1, 3, 12, 58, 344, 2405, 19238, 173138, 1731378, 19045154, 228541845, 2971043978, 41594615682, 623919235225, 9982707763599, 169706031981174, 3054708575661119, 58039462937561246, 1160789258751224920, 24376574433775723304, 536284637543065912676

Offset: 0

Author

Vincenzo Librandi, Jul 27 2025

Keywords

• nonn
• base

Crossrefs

Cf. A055642, A100731.

Subsequence of A034888.

Programs

Mathematica

Array[Floor[#! Log10@3+1]&,22]

Formula

a(n) = A055642(A100731(n)).