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 A329195 #8 Aug 01 2023 17:45:36
%S A329195 0,0,1,1,2,2,2,2,2,2,2,3,3,3,3,3,3,3,3,3,3,3,3,3,4,4,4,4,4,4,4,4,4,4,
%T A329195 4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,5,5,5,5,5,5,5,5,5,5,5,5,5,
%U A329195 5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5
%N A329195 a(n) = floor(log_5(n^2)) = floor(2 log_5(n)).
%t A329195 Table[Floor[2Log[5,n]],{n,100}] (* _Harvey P. Dale_, Dec 14 2021 *)
%o A329195 (PARI) apply( A329195(n)=logint(n^2,5), [1..99])
%Y A329195 Cf. A000290 (n^2), A062153 (log_3), A329202 (log_2(n^2)), A329193 (log_2(n^3)), A329194 (log_3(n^2)).
%K A329195 nonn
%O A329195 1,5
%A A329195 _M. F. Hasler_, Nov 07 2019