A044490 Numbers n such that string 1,1 occurs in the base 6 representation of n but not of n+1.

7, 47, 79, 115, 151, 187, 223, 287, 295, 331, 367, 403, 439, 479, 511, 547, 583, 619, 655, 695, 727, 763, 799, 835, 871, 911, 943, 979, 1015, 1051, 1087, 1127, 1159, 1195, 1231, 1267, 1303, 1343, 1375, 1411, 1447, 1483, 1727

Offset

1,1

Links

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

Mathematica

SequencePosition[Table[If[SequenceCount[IntegerDigits[n, 6], {1, 1}]>0, 1, 0], {n, 1800}], {1, 0}][[All, 1]] (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, Jan 23 2021 *)

Crossrefs

Sequence in context: A240569 A261183 A067658 * A139916 A009219 A348394

Adjacent sequences: A044487 A044488 A044489 * A044491 A044492 A044493

Keyword

nonn,base

Author

Clark Kimberling

Status

approved