A192122 Monotonic ordering of nonnegative differences 2^i-9^j, for 40>=i>=0, j>=0.

0, 1, 3, 7, 15, 23, 31, 47, 55, 63, 119, 127, 175, 247, 255, 295, 431, 503, 511, 943, 1015, 1023, 1319, 1631, 1967, 2039, 2047, 3367, 4015, 4087, 4095, 6487, 7463, 8111, 8183, 8191, 9823, 15655, 16303, 16375, 16383, 26207, 32039, 32687, 32759, 32767, 58975

Offset

1,3

Links

Table of n, a(n) for n=1..47.

Mathematica

c = 2; d = 9; 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. A192123.

Sequence in context: A322971 A165469 A160160 * A069119 A261413 A187220

Adjacent sequences: A192119 A192120 A192121 * A192123 A192124 A192125

Keyword

nonn

Author

Clark Kimberling, Jun 23 2011

Status

approved