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 A225002 #12 Dec 02 2017 10:10:05
%S A225002 1,4,6,8,11,13,15,18,20,22,25,27,29,32,34,36,39,41,43,46,48,50,53,55,
%T A225002 57,60,62,64,67,69,71,74,76,78,81,83,85,88,90,92,95,97,99,102,104,106,
%U A225002 109,111,113,116,118,120,123,125,127,130,132,134,137,139,141
%N A225002 Duplicate of A047290.
%t A225002 th = E^(3/7); t = Table[Floor[1/FractionalPart[th^(1/n)]], {n, 100}]
%K A225002 dead
%O A225002 1,2
%A A225002 _T. D. Noe_, Apr 26 2013