A044524 Numbers n such that string 0,5 occurs in the base 7 representation of n but not of n+1.

54, 103, 152, 201, 250, 299, 348, 384, 397, 446, 495, 544, 593, 642, 691, 727, 740, 789, 838, 887, 936, 985, 1034, 1070, 1083, 1132, 1181, 1230, 1279, 1328, 1377, 1413, 1426, 1475, 1524, 1573, 1622, 1671, 1720, 1756, 1769, 1818

Offset

1,1

Links

Harvey P. Dale, Table of n, a(n) for n = 1..1000

Mathematica

SequencePosition[Table[If[SequenceCount[IntegerDigits[n, 7], {0, 5}]>0, 1, 0], {n, 2000}], {1, 0}][[All, 1]] (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, Sep 19 2016 *)

Crossrefs

Sequence in context: A118150 A039779 A044143 * A095962 A229358 A341362

Adjacent sequences: A044521 A044522 A044523 * A044525 A044526 A044527

Keyword

nonn,base

Author

Clark Kimberling

Status

approved