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%I #6 Oct 21 2019 14:40:16
%S 0,1,5,7,8,17,49,65,73,77,79,80,217,473,601,665,697,713,721,725,727,
%T 728,2465,4513,5537,6049,6305,6433,6497,6529,6545,6553,6557,6559,6560,
%U 7153,26281,42665,50857,54953,57001,58025,58537,58793,58921,58985,59017
%N Monotonic ordering of nonnegative differences 9^i-2^j, for 40>= i>=0, j>=0.
%t c = 9; d = 2; 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. A192122.
%K nonn
%O 1,3
%A _Clark Kimberling_, Jun 23 2011