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A044223 Numbers n such that string 4,4 occurs in the base 8 representation of n but not of n-1. 0

%I

%S 36,100,164,228,288,356,420,484,548,612,676,740,800,868,932,996,1060,

%T 1124,1188,1252,1312,1380,1444,1508,1572,1636,1700,1764,1824,1892,

%U 1956,2020,2084,2148,2212,2276,2304,2404,2468,2532

%N Numbers n such that string 4,4 occurs in the base 8 representation of n but not of n-1.

%t Select[Range[3000],MemberQ[Partition[IntegerDigits[#,8],2,1],{4,4}] && !MemberQ[Partition[IntegerDigits[#-1,8],2,1],{4,4}]&] (* _Harvey P. Dale_, Oct 12 2012 *)

%K nonn,base

%O 1,1

%A _Clark Kimberling_

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Last modified June 19 22:46 EDT 2013. Contains 226416 sequences.