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%I #7 Jan 10 2019 12:05:56
%S 92,192,292,392,492,592,692,792,892,929,992,1092,1192,1292,1392,1492,
%T 1592,1692,1792,1892,1929,1992,2092,2192,2292,2392,2492,2592,2692,
%U 2792,2892,2929,2992,3092,3192,3292,3392,3492,3592
%N Numbers n such that string 9,2 occurs in the base 10 representation of n but not of n+1.
%t 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 *)
%K nonn,base
%O 1,1
%A _Clark Kimberling_
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