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 A029835 #14 Jul 08 2025 19:22:47
%S A029835 0,1,1,1,2,2,2,2,3,3,3,3,3,3,3,3,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,
%T A029835 5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,
%U A029835 5,5,5,5,5,5,5,5,5,5,5,6
%N A029835 [ log(n-th prime) ].
%t A029835 Table[Floor[Log[Prime[n]]], {n, 80}] (* _Alonso del Arte_, Sep 11 2013 *)
%o A029835 (PARI) a(n) = floor(log(prime(n))); \\ _Michel Marcus_, Sep 11 2013
%K A029835 nonn,easy
%O A029835 1,5
%A A029835 _N. J. A. Sloane_