%I #6 Oct 21 2019 15:00:31

%S 0,4,7,48,60,63,256,448,496,508,511,3072,3840,4032,4080,4092,4095,

%T 16384,28672,31744,32512,32704,32752,32764,32767,196608,245760,258048,

%U 261120,261888,262080,262128,262140,262143,1048576,1835008,2031616,2080768,2093056

%N Monotonic ordering of nonnegative differences 8^i-4^j, for 40>= i>=0, j>=0.

%t c = 8; 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. A192167.

%K nonn

%O 1,2

%A _Clark Kimberling_, Jun 24 2011