A192158 Monotonic ordering of nonnegative differences 9^i-3^j, for 40>= i>=0, j>=0.

0, 6, 8, 54, 72, 78, 80, 486, 648, 702, 720, 726, 728, 4374, 5832, 6318, 6480, 6534, 6552, 6558, 6560, 39366, 52488, 56862, 58320, 58806, 58968, 59022, 59040, 59046, 59048, 354294, 472392, 511758, 524880, 529254, 530712, 531198, 531360, 531414, 531432

Offset

1,2

Links

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

Mathematica

c = 9; d = 3; 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. A192157.

Sequence in context: A164640 A223852 A227167 * A167481 A137122 A272963

Adjacent sequences: A192155 A192156 A192157 * A192159 A192160 A192161

Keyword

nonn

Author

Clark Kimberling, Jun 24 2011

Status

approved