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 A192196 #7 Oct 21 2019 15:08:19
%S A192196 0,2,6,24,44,48,218,318,338,342,1182,1776,2276,2376,2396,2400,13682,
%T A192196 16182,16682,16782,16802,16806,39524,102024,114524,117024,117524,
%U A192196 117624,117644,117648,432918,745418,807918,820418,822918,823418,823518,823538,823542
%N A192196 Monotonic ordering of nonnegative differences 7^i-5^j, for 40>= i>=0, j>=0.
%t A192196 c = 7; d = 5; t[i_, j_] := c^i - d^j;
%t A192196 u = Table[t[i, j], {i, 0, 40}, {j, 0, i*Log[d, c]}];
%t A192196 v = Union[Flatten[u ]]
%Y A192196 Cf. A192195.
%K A192196 nonn
%O A192196 1,2
%A A192196 _Clark Kimberling_, Jun 25 2011