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 A138251 #2 Mar 30 2012 18:57:10 %S A138251 1,2,4,5,7,8,10,11,13,14,16,17,19,20,21,23,24,26,27,29,30,32,33,35,36, %T A138251 38,39,41,42,43,45,46,48,49,51,52,54,55,57,58,60,61,63,64,65,67,68,70, %U A138251 71,73,74,76,77,79,80,82,83,85,86,87,89,90,92,93,95,96,98,99,101,102 %N A138251 Beatty sequence of the positive root of x^3 - x^2 - 1. %C A138251 First differs from A110118 at 73rd term. %F A138251 a(n)=Floor(r*n), where r=1.46557123187676...; see A092526 for more decimal places. %Y A138251 Cf. A092526, A110118, A138253. %K A138251 nonn %O A138251 1,2 %A A138251 _Clark Kimberling_, Mar 09 2008