A044500 Numbers n such that string 2,5 occurs in the base 6 representation of n but not of n+1.

17, 53, 89, 107, 125, 161, 197, 233, 269, 305, 323, 341, 377, 413, 449, 485, 521, 539, 557, 593, 647, 665, 701, 737, 755, 773, 809, 845, 881, 917, 953, 971, 989, 1025, 1061, 1097, 1133, 1169, 1187, 1205, 1241, 1277, 1313, 1349

Offset

1,1

Links

Table of n, a(n) for n=1..44.

Mathematica

SequencePosition[Table[If[SequenceCount[IntegerDigits[n, 6], {2, 5}]>0, 1, 0], {n, 1500}], {1, 0}][[All, 1]] (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, Nov 27 2018 *)

Crossrefs

Sequence in context: A287311 A285225 A044119 * A142105 A031383 A248697

Adjacent sequences: A044497 A044498 A044499 * A044501 A044502 A044503

Keyword

nonn,base

Author

Clark Kimberling

Status

approved