A044465 Numbers n such that string 1,2 occurs in the base 5 representation of n but not of n+1.

7, 32, 39, 57, 82, 107, 132, 157, 164, 199, 207, 232, 257, 282, 289, 307, 332, 357, 382, 407, 414, 432, 457, 482, 507, 532, 539, 557, 582, 607, 632, 657, 664, 682, 707, 732, 757, 782, 789, 824, 832, 857, 999, 1007, 1032, 1039, 1057

Offset

1,1

Links

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

Mathematica

SequencePosition[Table[If[SequenceCount[IntegerDigits[n, 5], {1, 2}]>0, 1, 0], {n, 1200}], {1, 0}][[;; , 1]] (* Harvey P. Dale, Mar 04 2024 *)

Crossrefs

Sequence in context: A164819 A067811 A044084 * A029484 A153716 A153715

Adjacent sequences: A044462 A044463 A044464 * A044466 A044467 A044468

Keyword

nonn,base

Author

Clark Kimberling

Status

approved