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A044506 Numbers n such that string 3,5 occurs in the base 6 representation of n but not of n+1. 1
23, 59, 95, 131, 143, 167, 203, 239, 275, 311, 347, 359, 383, 419, 455, 491, 527, 563, 575, 599, 635, 671, 707, 743, 779, 791, 815, 863, 887, 923, 959, 995, 1007, 1031, 1067, 1103, 1139, 1175, 1211, 1223, 1247, 1283, 1319, 1355, 1391, 1427, 1439, 1463, 1499 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..49.

MATHEMATICA

.f[n_] := Length[StringPosition[ToString[FromDigits[IntegerDigits[n, 6]]], "35", 1]]; Select[Table[n, {n, 10000}], f[#] > 0 && f[# + 1] == 0 &] (* Vladimir Joseph Stephan Orlovsky, Jul 20 2011 *)

CROSSREFS

Cf. A044125.

Sequence in context: A179629 A274381 A044125 * A033217 A142107 A107208

Adjacent sequences:  A044503 A044504 A044505 * A044507 A044508 A044509

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified May 26 09:42 EDT 2019. Contains 323579 sequences. (Running on oeis4.)