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 A329194 #13 Jun 02 2025 15:22:54
%S A329194 0,1,2,2,2,3,3,3,4,4,4,4,4,4,4,5,5,5,5,5,5,5,5,5,5,5,6,6,6,6,6,6,6,6,
%T A329194 6,6,6,6,6,6,6,6,6,6,6,6,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
%U A329194 7,7,7,7,7,7,7,7,7,7,7,7,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8
%N A329194 a(n) = floor(log_3(n^2)) = floor(2 log_3(n)).
%F A329194 2*A062153(n) <= a(n) = floor(log_3(n^2)) = A062153(A000290(n)).
%F A329194 This A329194 = A062153 o A000290.
%t A329194 Table[Floor[Log[3,n^2]],{n,120}] (* _Harvey P. Dale_, May 04 2025 *)
%o A329194 (PARI) apply( A329194(n)=logint(n^2,3), [1..99])
%Y A329194 Cf. A000290 (n^2), A062153 (log_3), A329202 (log_2(n^2)), A329193 (log_2(n^3)).
%K A329194 nonn
%O A329194 1,3
%A A329194 _M. F. Hasler_, Nov 07 2019