A043898 Numbers k such that 0 and 3 occur juxtaposed in the base-6 representation of k but not of k+1.

18, 39, 54, 75, 90, 113, 126, 147, 162, 183, 198, 219, 239, 255, 270, 291, 306, 329, 342, 363, 378, 399, 414, 435, 455, 471, 486, 507, 522, 545, 558, 579, 594, 615, 630, 683, 687, 702, 723, 738, 761, 774, 795, 810, 831, 846, 867

Offset

1,1

Links

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

Mathematica

SequencePosition[Table[If[SequenceCount[IntegerDigits[n, 6], {0, 3}]>0||SequenceCount[IntegerDigits[n, 6], {3, 0}]>0, 1, 0], {n, 900}], {1, 0}][[;; , 1]] (* Harvey P. Dale, Oct 08 2025 *)

Crossrefs

Cf. A007092.

Sequence in context: A070686 A043118 A039295 * A341294 A231086 A285527

Adjacent sequences: A043895 A043896 A043897 * A043899 A043900 A043901

Keyword

nonn,base

Author

Clark Kimberling

Status

approved