A044683 Numbers n such that string 5,6 occurs in the base 9 representation of n but not of n+1.

51, 132, 213, 294, 375, 456, 467, 537, 618, 699, 780, 861, 942, 1023, 1104, 1185, 1196, 1266, 1347, 1428, 1509, 1590, 1671, 1752, 1833, 1914, 1925, 1995, 2076, 2157, 2238, 2319, 2400, 2481, 2562, 2643, 2654, 2724, 2805

Offset

1,1

Links

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

Mathematica

Select[Range[3000], MemberQ[Partition[IntegerDigits[#, 9], 2, 1], {5, 6}] && !MemberQ[Partition[IntegerDigits[#+1, 9], 2, 1], {5, 6}]&] (* Harvey P. Dale, Sep 29 2011 *)

Crossrefs

Sequence in context: A097644 A353987 A044302 * A348000 A044383 A044764

Adjacent sequences: A044680 A044681 A044682 * A044684 A044685 A044686

Keyword

nonn,base

Author

Clark Kimberling

Status

approved