A044128 Numbers n such that string 4,2 occurs in the base 6 representation of n but not of n-1.

26, 62, 98, 134, 156, 170, 206, 242, 278, 314, 350, 372, 386, 422, 458, 494, 530, 566, 588, 602, 638, 674, 710, 746, 782, 804, 818, 854, 890, 926, 936, 998, 1020, 1034, 1070, 1106, 1142, 1178, 1214, 1236, 1250, 1286, 1322, 1358

Offset

1,1

Links

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

Mathematica

SequencePosition[Table[If[SequenceCount[IntegerDigits[n, 6], {4, 2}]>0, 1, 0], {n, 1500}], {0, 1}][[All, 2]] (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, Oct 11 2018 *)

Crossrefs

Sequence in context: A267294 A162316 A173085 * A044509 A039413 A043236

Adjacent sequences: A044125 A044126 A044127 * A044129 A044130 A044131

Keyword

nonn,base

Author

Clark Kimberling

Status

approved