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.
%I A080944 #9 May 02 2014 00:24:02 %S A080944 1,2,3,4,5,6,7,8,9,10,11,12,13,14,16,17,18,19,20,21,22,23,24,25,26,28, %T A080944 29,31,32,33,34,35,36,37,38,40,41,42,43,44,46,47,48,49,50,52,53,55,56, %U A080944 57,58,59,61,62,64,65,66,67,68,69,70,71,72,73,74,76,77,79,80,81,82,83 %N A080944 Numbers having only trivial divisors that are also suffixes in binary representation. %C A080944 A080942(a(n))<=2; union of powers of 2 (A000079) and A080943; complement of A080945. %H A080944 Reinhard Zumkeller, <a href="/A080944/b080944.txt">Table of n, a(n) for n = 1..10000</a> %o A080944 (Haskell) %o A080944 a080944 n = a080944_list !! (n-1) %o A080944 a080944_list = filter ((<= 2) . a080942) [1..] %o A080944 -- _Reinhard Zumkeller_, Mar 27 2014 %Y A080944 Cf. A007088, A080940, A080941. %K A080944 nonn,base %O A080944 1,2 %A A080944 _Reinhard Zumkeller_, Feb 25 2003