A044133 Numbers n such that string 5,1 occurs in the base 6 representation of n but not of n-1.

31, 67, 103, 139, 175, 186, 211, 247, 283, 319, 355, 391, 402, 427, 463, 499, 535, 571, 607, 618, 643, 679, 715, 751, 787, 823, 834, 859, 895, 931, 967, 1003, 1039, 1050, 1075, 1111, 1116, 1183, 1219, 1255, 1266, 1291, 1327

Offset

1,1

Links

Table of n, a(n) for n=1..43.

Mathematica

Transpose[SequencePosition[Table[If[SequenceCount[IntegerDigits[n, 6], {5, 1}]>0, 1, 0], {n, 1500}], {0, 1}]][[2]] (* The program uses the SequencePosition and SequenceCount functions from Mathematica version 10 *) (* Harvey P. Dale, Aug 07 2015 *)

Crossrefs

Sequence in context: A132772 A116324 A179571 * A044514 A142110 A110831

Adjacent sequences: A044130 A044131 A044132 * A044134 A044135 A044136

Keyword

nonn,base

Author

Clark Kimberling

Status

approved