A044495 - OEIS

%I #7 Apr 05 2019 15:28:11

%S 12,48,77,84,120,156,192,228,264,293,300,336,372,408,467,480,509,516,

%T 552,588,624,660,696,725,732,768,804,840,876,912,941,948,984,1020,

%U 1056,1092,1128,1157,1164,1200,1236,1272,1308,1344

%N Numbers n such that string 2,0 occurs in the base 6 representation of n but not of n+1.

%t SequencePosition[Table[If[SequenceCount[IntegerDigits[n,6],{2,0}]>0,1,0],{n,1500}],{1,0}][[All,1]] (* Requires Mathematica version 10 or later *) (* _Harvey P. Dale_, Apr 05 2019 *)

%K nonn,base

%O 1,1

%A _Clark Kimberling_