A043157 Numbers k such that 0 and 6 occur juxtaposed in the base-8 representation of k but not of k-1.

48, 70, 112, 134, 176, 198, 240, 262, 304, 326, 368, 384, 432, 454, 496, 518, 560, 582, 624, 646, 688, 710, 752, 774, 816, 838, 880, 896, 944, 966, 1008, 1030, 1072, 1094, 1136, 1158, 1200, 1222, 1264, 1286, 1328, 1350, 1392

Offset

1,1

Links

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

Mathematica

Transpose[SequencePosition[Table[If[SequenceCount[IntegerDigits[n, 8], {0, 6}]>0||SequenceCount[IntegerDigits[n, 8], {6, 0}]>0, 1, 0], {n, 1400}], {0, 1}]][[2]] (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, Aug 15 2016 *)

Crossrefs

Cf. A007094.

Sequence in context: A241481 A100409 A260921 * A039334 A043937 A173042

Adjacent sequences: A043154 A043155 A043156 * A043158 A043159 A043160

Keyword

nonn,base

Author

Clark Kimberling

Status

approved