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 A192150 #6 Oct 21 2019 14:48:35
%S A192150 0,2,4,16,22,24,44,98,116,122,124,382,544,598,616,622,624,938,2396,
%T A192150 2882,3044,3098,3116,3122,3124,9064,13438,14896,15382,15544,15598,
%U A192150 15616,15622,15624,19076,58442,71564,75938,77396,77882,78044,78098,78116,78122,78124
%N A192150 Monotonic ordering of nonnegative differences 5^i-3^j, for 40>=i>=0, j>=0.
%t A192150 c = 5; d = 3; t[i_, j_] := c^i - d^j;
%t A192150 u = Table[t[i, j], {i, 0, 40}, {j, 0, i*Log[d, c]}];
%t A192150 v = Union[Flatten[u ]]
%Y A192150 Cf. A192149.
%K A192150 nonn
%O A192150 1,2
%A A192150 _Clark Kimberling_, Jun 24 2011