%I
%S 0,2,6,8,9,36,68,84,92,96,98,99,488,744,872,936,968,984,992,996,998,
%T 999,1808,5904,7952,8976,9488,9744,9872,9936,9968,9984,9992,9996,9998,
%U 9999,34464,67232,83616,91808,95904,97952,98976,99488,99744,99872,99936
%N Monotonic ordering of nonnegative differences 10^i2^j, for 40>= i>=0, j>=0.
%t c = 10; 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. A192124.
%K nonn
%O 1,2
%A _Clark Kimberling_, Jun 23 2011
