A192168 Monotonic ordering of nonnegative differences 8^i-4^j, for 40>= i>=0, j>=0.

0, 4, 7, 48, 60, 63, 256, 448, 496, 508, 511, 3072, 3840, 4032, 4080, 4092, 4095, 16384, 28672, 31744, 32512, 32704, 32752, 32764, 32767, 196608, 245760, 258048, 261120, 261888, 262080, 262128, 262140, 262143, 1048576, 1835008, 2031616, 2080768, 2093056

Offset

1,2

Links

Table of n, a(n) for n=1..39.

Mathematica

c = 8; d = 4; t[i_, j_] := c^i - d^j;
u = Table[t[i, j], {i, 0, 40}, {j, 0, i*Log[d, c]}];
v = Union[Flatten[u ]]

Crossrefs

Cf. A192167.

Sequence in context: A115439 A375381 A348625 * A094609 A249936 A049191

Adjacent sequences: A192165 A192166 A192167 * A192169 A192170 A192171

Keyword

nonn

Author

Clark Kimberling, Jun 24 2011

Status

approved