A044805 - OEIS

A044805

Numbers n such that string 9,2 occurs in the base 10 representation of n but not of n+1.

92, 192, 292, 392, 492, 592, 692, 792, 892, 929, 992, 1092, 1192, 1292, 1392, 1492, 1592, 1692, 1792, 1892, 1929, 1992, 2092, 2192, 2292, 2392, 2492, 2592, 2692, 2792, 2892, 2929, 2992, 3092, 3192, 3292, 3392, 3492, 3592

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OFFSET

1,1

LINKS

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

MATHEMATICA

SequencePosition[Table[If[SequenceCount[IntegerDigits[n], {9, 2}]>0, 1, 0], {n, 4000}], {1, 0}][[All, 1]] (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, Jan 10 2019 *)

CROSSREFS

Sequence in context: A116215 A272369 A044424 * A063326 A185461 A246802

Adjacent sequences: A044802 A044803 A044804 * A044806 A044807 A044808

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

STATUS

approved