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A192119 Monotonic ordering of nonnegative differences 7^i-2^j, for 40>=i>=0, j>=0. 2
0, 3, 5, 6, 17, 33, 41, 45, 47, 48, 87, 215, 279, 311, 327, 335, 339, 341, 342, 353, 423, 1377, 1889, 2145, 2273, 2337, 2369, 2385, 2393, 2397, 2399, 2400, 8615, 12711, 14759, 15783, 16295, 16551, 16679, 16743, 16775, 16791, 16799, 16803, 16805, 16806, 52113 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

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

MATHEMATICA

c = 7; d = 2; 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. A192118.

Sequence in context: A099678 A287687 A290761 * A050563 A282809 A168156

Adjacent sequences:  A192116 A192117 A192118 * A192120 A192121 A192122

KEYWORD

nonn,changed

AUTHOR

Clark Kimberling, Jun 23 2011

STATUS

approved

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Last modified October 21 22:47 EDT 2019. Contains 328315 sequences. (Running on oeis4.)