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 A192195 #7 Oct 21 2019 15:07:12
%S A192195 0,4,18,24,76,118,124,282,576,618,624,724,2782,3076,3118,3124,13224,
%T A192195 15282,15576,15618,15624,61318,75724,77782,78076,78118,78124,272976,
%U A192195 373818,388224,390282,390576,390618,390624,1129582,1835476,1936318,1950724,1952782
%N A192195 Monotonic ordering of nonnegative differences 5^i-7^j, for 40>= i>=0, j>=0.
%t A192195 c = 5; d = 7; t[i_, j_] := c^i - d^j;
%t A192195 u = Table[t[i, j], {i, 0, 40}, {j, 0, i*Log[d, c]}];
%t A192195 v = Union[Flatten[u ]]
%Y A192195 Cf. A192196.
%K A192195 nonn
%O A192195 1,2
%A A192195 _Clark Kimberling_, Jun 25 2011