A044227 Numbers n such that string 5,0 occurs in the base 8 representation of n but not of n-1.

40, 104, 168, 232, 296, 320, 360, 424, 488, 552, 616, 680, 744, 808, 832, 872, 936, 1000, 1064, 1128, 1192, 1256, 1320, 1344, 1384, 1448, 1512, 1576, 1640, 1704, 1768, 1832, 1856, 1896, 1960, 2024, 2088, 2152, 2216, 2280, 2344

Offset

1,1

Links

Table of n, a(n) for n=1..41.

Mathematica

SequencePosition[Table[If[SequenceCount[IntegerDigits[n, 8], {5, 0}]>0, 1, 0], {n, 2500}], {0, 1}][[All, 2]] (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, Aug 23 2017 *)

Crossrefs

Sequence in context: A043219 A039396 A043999 * A044608 A241024 A123992

Adjacent sequences: A044224 A044225 A044226 * A044228 A044229 A044230

Keyword

nonn,base

Author

Clark Kimberling

Status

approved