A044633 Numbers n such that string 0,1 occurs in the base 9 representation of n but not of n+1.

82, 163, 244, 325, 406, 487, 568, 649, 730, 746, 811, 892, 973, 1054, 1135, 1216, 1297, 1378, 1459, 1475, 1540, 1621, 1702, 1783, 1864, 1945, 2026, 2107, 2188, 2204, 2269, 2350, 2431, 2512, 2593, 2674, 2755, 2836, 2917

Offset

1,1

Links

Table of n, a(n) for n=1..39.

Mathematica

Select[Range[3000], MemberQ[Partition[IntegerDigits[#, 9], 2, 1], {0, 1}] && !MemberQ[ Partition[IntegerDigits[#+1, 9], 2, 1], {0, 1}]&] (* Harvey P. Dale, Feb 20 2013 *)
SequencePosition[Table[If[SequenceCount[IntegerDigits[n, 9], {0, 1}]>0, 1, 0], {n, 3000}], {1, 0}] [[;; , 1]] (* Harvey P. Dale, Jan 16 2024 *)

Crossrefs

Sequence in context: A173087 A264352 A044252 * A158123 A370951 A044414

Adjacent sequences: A044630 A044631 A044632 * A044634 A044635 A044636

Keyword

nonn,base

Author

Clark Kimberling

Status

approved