A044090 Numbers n such that string 2,3 occurs in the base 5 representation of n but not of n-1.

13, 38, 63, 65, 88, 113, 138, 163, 188, 190, 213, 238, 263, 288, 313, 315, 325, 363, 388, 413, 438, 440, 463, 488, 513, 538, 563, 565, 588, 613, 638, 663, 688, 690, 713, 738, 763, 788, 813, 815, 838, 863, 888, 913, 938, 940, 950

Offset

1,1

Links

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

Mathematica

SequencePosition[Table[If[SequenceCount[IntegerDigits[n, 5], {2, 3}]>0, 1, 0], {n, 1000}], {0, 1}][[All, 2]] (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, Dec 29 2019 *)

Crossrefs

Sequence in context: A129541 A302858 A244185 * A044471 A285525 A209991

Adjacent sequences: A044087 A044088 A044089 * A044091 A044092 A044093

Keyword

nonn,base

Author

Clark Kimberling

Status

approved