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Monotonic ordering of nonnegative differences 4^i-6^j, for 40>= i>=0, j>=0.
3

%I #6 Oct 21 2019 14:56:34

%S 0,3,10,15,28,40,58,63,220,250,255,808,988,1018,1023,2800,3880,4060,

%T 4090,4095,8608,15088,16168,16348,16378,16383,18880,57760,64240,65320,

%U 65500,65530,65535,215488,254368,260848,261928,262108,262138,262143,768640,1001920

%N Monotonic ordering of nonnegative differences 4^i-6^j, for 40>= i>=0, j>=0.

%t c = 4; d = 6; 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. A192164.

%K nonn

%O 1,2

%A _Clark Kimberling_, Jun 24 2011