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 A257672 #6 May 06 2015 09:48:45
%S A257672 2,3,4,5,6,7,8,10,12,13,17,18,19,21,23,28,30,31,34,35,46,47,48,50,52,
%T A257672 57,63,75,77,78,82,92,93,122,123,124,126,128,133,139,151,168,198,200,
%U A257672 201,205,216,244,245,321,322,323,325,327,332,338,350,367,397,443
%N A257672 Numbers of the form floor(r^i) + floor(s^j), where r = (1 + sqrt(5))/2, s = r^2, i >= 0, j >= 0.
%t A257672 r = GoldenRatio; s = r/(r - 1); Take[Union[Flatten[Table[Floor[r^i] + Floor[s^j], {i, 0, 100}, {j, 0, 100}]]], 100]
%Y A257672 Cf. A001622, A104457.
%Y A257672 Cf. A257671.
%K A257672 nonn,easy
%O A257672 1,1
%A A257672 _Clark Kimberling_, May 03 2015