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