cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A080945 Numbers having more than two divisors that are also suffixes in binary representation.

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%I A080945 #9 May 02 2014 00:24:14
%S A080945 15,27,30,39,45,51,54,60,63,75,78,85,87,90,99,102,108,111,119,120,123,
%T A080945 125,126,135,147,150,153,156,159,165,170,171,174,175,180,183,187,195,
%U A080945 198,204,205,207,216,219,221,222,231,238,240,243,245,246,250,252,255
%N A080945 Numbers having more than two divisors that are also suffixes in binary representation.
%C A080945 A080942(a(n))>2; complement of A080944;
%C A080945 A080942(a(n))-2 < A070824(a(n)).
%H A080945 Reinhard Zumkeller, <a href="/A080945/b080945.txt">Table of n, a(n) for n = 1..10000</a>
%o A080945 (Haskell)
%o A080945 a080945 n = a080945_list !! (n-1)
%o A080945 a080945_list = filter ((> 2) . a080942) [1..]
%o A080945 -- _Reinhard Zumkeller_, Mar 27 2014
%Y A080945 Cf. A080943, A080946, A007088, A080940, A080941.
%K A080945 nonn,base
%O A080945 1,1
%A A080945 _Reinhard Zumkeller_, Feb 25 2003