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A044205 Numbers n such that string 2,2 occurs in the base 8 representation of n but not of n-1. 0

%I #8 Nov 21 2013 12:47:03

%S 18,82,144,210,274,338,402,466,530,594,656,722,786,850,914,978,1042,

%T 1106,1152,1234,1298,1362,1426,1490,1554,1618,1680,1746,1810,1874,

%U 1938,2002,2066,2130,2192,2258,2322,2386,2450,2514

%N Numbers n such that string 2,2 occurs in the base 8 representation of n but not of n-1.

%t Select[Range[2800],MemberQ[Partition[IntegerDigits[#,8],2,1],{2,2}]&& !MemberQ[Partition[IntegerDigits[#-1,8],2,1],{2,2}]&] (* _Harvey P. Dale_, Oct 13 2011 *)

%K nonn,base

%O 1,1

%A _Clark Kimberling_

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Last modified April 12 17:42 EDT 2024. Contains 371635 sequences. (Running on oeis4.)