%I #6 Oct 21 2019 19:19:17

%S 0,5,8,17,65,77,80,473,665,713,725,728,2465,5537,6305,6497,6545,6557,

%T 6560,42665,54953,58025,58793,58985,59033,59045,59048,269297,465905,

%U 515057,527345,530417,531185,531377,531425,531437,531440,588665,3734393,4520825

%N Monotonic ordering of nonnegative differences 9^i-4^j, for 40>= i>=0, j>=0.

%t c = 9; d = 4; 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. A192169.

%K nonn

%O 1,2

%A _Clark Kimberling_, Jun 24 2011