A044503 Numbers n such that string 3,2 occurs in the base 6 representation of n but not of n+1.

20, 56, 92, 125, 128, 164, 200, 236, 272, 308, 341, 344, 380, 416, 452, 488, 524, 557, 560, 596, 632, 668, 704, 755, 773, 776, 812, 848, 884, 920, 956, 989, 992, 1028, 1064, 1100, 1136, 1172, 1205, 1208, 1244, 1280, 1316, 1352, 1388, 1421, 1424, 1460, 1496

Offset

1,1

Links

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

Mathematica

f[n_] := Length[StringPosition[ToString[FromDigits[IntegerDigits[n, 6]]], "32", 1]]; Select[Table[n, {n, 10000}], f[#] > 0 && f[# + 1] == 0 &] (* Vladimir Joseph Stephan Orlovsky, Jul 20 2011 *)

Crossrefs

Cf. A044122.

Sequence in context: A123456 A144521 A044122 * A344072 A109806 A331774

Adjacent sequences: A044500 A044501 A044502 * A044504 A044505 A044506

Keyword

nonn,base

Author

Clark Kimberling

Status

approved