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A044506 Numbers n such that string 3,5 occurs in the base 6 representation of n but not of n+1. 1

%I

%S 23,59,95,131,143,167,203,239,275,311,347,359,383,419,455,491,527,563,

%T 575,599,635,671,707,743,779,791,815,863,887,923,959,995,1007,1031,

%U 1067,1103,1139,1175,1211,1223,1247,1283,1319,1355,1391,1427,1439,1463,1499

%N Numbers n such that string 3,5 occurs in the base 6 representation of n but not of n+1.

%t f[n_] := Length[StringPosition[ToString[FromDigits[IntegerDigits[n, 6]]], "35", 1]]; Select[Table[n, {n, 10000}], f[#] > 0 && f[# + 1] == 0 &] (* _Vladimir Joseph Stephan Orlovsky_, Jul 20 2011 *)

%Y Cf. A044125.

%K nonn,base

%O 1,1

%A _Clark Kimberling_

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Last modified August 16 07:50 EDT 2022. Contains 356160 sequences. (Running on oeis4.)