A044697 Numbers n such that string 7,2 occurs in the base 9 representation of n but not of n+1.

65, 146, 227, 308, 389, 470, 551, 593, 632, 713, 794, 875, 956, 1037, 1118, 1199, 1280, 1322, 1361, 1442, 1523, 1604, 1685, 1766, 1847, 1928, 2009, 2051, 2090, 2171, 2252, 2333, 2414, 2495, 2576, 2657, 2738, 2780, 2819

Offset

1,1

Links

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

Mathematica

SequencePosition[Table[If[SequenceCount[IntegerDigits[n, 9], {7, 2}]>0, 1, 0], {n, 3000}], {1, 0}][[All, 1]] (* Harvey P. Dale, Apr 09 2022 *)

Crossrefs

Sequence in context: A345700 A121944 A044316 * A350209 A326157 A044397

Adjacent sequences: A044694 A044695 A044696 * A044698 A044699 A044700

Keyword

nonn,base

Author

Clark Kimberling

Status

approved