A192157 Monotonic ordering of nonnegative differences 3^i-9^j, for 40>=i>=0, j>=0.

0, 2, 8, 18, 26, 72, 80, 162, 234, 242, 648, 720, 728, 1458, 2106, 2178, 2186, 5832, 6480, 6552, 6560, 13122, 18954, 19602, 19674, 19682, 52488, 58320, 58968, 59040, 59048, 118098, 170586, 176418, 177066, 177138, 177146, 472392, 524880, 530712, 531360

Offset

1,2

Links

Table of n, a(n) for n=1..41.

Mathematica

c = 3; 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. A192158.

Sequence in context: A109136 A295522 A065131 * A268810 A063581 A293296

Adjacent sequences: A192154 A192155 A192156 * A192158 A192159 A192160

Keyword

nonn

Author

Clark Kimberling, Jun 24 2011

Status

approved