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 A095775 #8 Aug 02 2013 23:09:03 %S A095775 1,2,4,5,6,8,9,10,12,16,17,18,20,21,22,24,25,26,30,32,33,34,36,37,38, %T A095775 40,41,42,44,48,49,50,52,60,64,65,66,68,69,70,72,73,74,76,80,81,82,84, %U A095775 85,86,88,89,90,94,96,97,98,100,101,102,104,105,106,110,118,120,121,122 %N A095775 n/2 when 2*A003160(n) = n. %H A095775 Reinhard Zumkeller, <a href="/A095775/b095775.txt">Table of n, a(n) for n = 1..1000</a> %o A095775 (Haskell) %o A095775 a095775 n = a095775_list !! (n-1) %o A095775 a095775_list = map (`div` 2) $ filter ((== 0) . a095774) [1..] %o A095775 -- _Reinhard Zumkeller_, Aug 02 2013 %Y A095775 Cf. A095774. %K A095775 nonn %O A095775 1,2 %A A095775 _Benoit Cloitre_, Jun 05 2004