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 A126768 #10 Aug 22 2013 10:16:00 %S A126768 1,1,1,2,2,4,2,1,1,3,3,2,2,1,1,3,2,3,1,2,1,1,2,2,2,1,2,2,2,3,3,1,1,1, %T A126768 1,4,1,2,1,4,2,3,1,2,2,1,1,1,3,3,1,3,2,1,2,4,2,2,4,2,4,1,2,1,1,3,1,2, %U A126768 2,1,2,1,1,2,3,2,1,4,3,1,3,1,5,6,3,1,4,5,5,1,5,3,1,1,6,1,1,4,1,2,2,2,3,1,1,1,1,1,7,1,1,2,1,1,1,3,1,2,2,2,3,1,1,1,1 %N A126768 Equal-parity block sizes in sequence A117872. %C A126768 From a suggestion due to D. R. Hofstadter. %H A126768 Charles R Greathouse IV, <a href="/A126768/b126768.txt">Table of n, a(n) for n = 1..10000</a> %o A126768 (Haskell) %o A126768 import Data.List (group) %o A126768 a126768 n = a126768_list !! n %o A126768 a126768_list = map length $ group a117872_list %o A126768 -- _Reinhard Zumkeller_, Aug 15 2013 %K A126768 nonn %O A126768 1,4 %A A126768 _Greg Huber_, Feb 16 2007 %E A126768 Corrected terms from _Greg Huber_, Aug 21 2013