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A132782 Numbers with at least one occurrence of '1010' in binary representation. 4


%S 10,20,21,26,40,41,42,43,52,53,58,74,80,81,82,83,84,85,86,87,90,104,

%T 105,106,107,116,117,122,138,148,149,154,160,161,162,163,164,165,166,

%U 167,168,169,170,171,172,173,174,175,180,181,186,202,208,209,210,211,212

%N Numbers with at least one occurrence of '1010' in binary representation.

%C Complement of A132781; subsequence of A062289; A000975 is a subsequence apart of the initial 4 terms.

%H R. Zumkeller, <a href="/A132782/b132782.txt">Table of n, a(n) for n = 1..10000</a>

%H <a href="/index/Bi#binary">Index entries for sequences related to binary expansion of n</a>

%t Select[Range[250],SequenceCount[IntegerDigits[#,2],{1,0,1,0}]>0&] (* Requires Mathematica version 10 or later *) (* _Harvey P. Dale_, Jul 08 2017 *)

%K nonn,base

%O 1,1

%A _Reinhard Zumkeller_, Aug 30 2007

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Last modified January 22 04:27 EST 2020. Contains 331133 sequences. (Running on oeis4.)