A044685 Numbers n such that string 5,8 occurs in the base 9 representation of n but not of n+1.

53, 134, 215, 296, 377, 458, 485, 539, 620, 701, 782, 863, 944, 1025, 1106, 1187, 1214, 1268, 1349, 1430, 1511, 1592, 1673, 1754, 1835, 1916, 1943, 1997, 2078, 2159, 2240, 2321, 2402, 2483, 2564, 2645, 2672, 2726, 2807

Offset

1,1

Links

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

Mathematica

SequencePosition[Table[If[SequenceCount[IntegerDigits[n, 9], {5, 8}]>0, 1, 0], {n, 3000}], {1, 0}][[All, 1]] (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, May 17 2021 *)

Crossrefs

Sequence in context: A142167 A323590 A044304 * A239721 A142259 A161611

Adjacent sequences: A044682 A044683 A044684 * A044686 A044687 A044688

Keyword

nonn,base

Author

Clark Kimberling

Status

approved