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 A255067 #8 Feb 21 2015 23:04:44 %S A255067 0,1,3,2,7,6,5,15,14,13,11,9,31,30,29,27,25,23,21,18,16,63,62,61,59, %T A255067 57,55,53,50,48,47,45,42,39,37,34,32,127,126,125,123,121,119,117,114, %U A255067 112,111,109,106,103,101,98,96,95,93,90,87,84,81,78,76,74,71,69,66,64,255 %N A255067 Terms of A255066 halved. %H A255067 Antti Karttunen, <a href="/A255067/b255067.txt">Table of n, a(n) for n = 0..16142</a> %F A255067 a(n) = A255066(n)/2. %F A255067 Other identities. For all n >= 0: %F A255067 a(n) = A255057(A255122(n)). %o A255067 (Scheme) (define (A255067 n) (/ (A255066 n) 2)) %Y A255067 Cf. A255066, A255057, A255122, A255125, A255126. %K A255067 nonn %O A255067 0,3 %A A255067 _Antti Karttunen_, Feb 14 2015