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 A030336 #12 Jul 13 2013 12:01:54 %S A030336 1,1,2,1,1,1,1,2,1,1,1,1,3,2,2,1,1,1,1,1,1,1,1,2,1,1,1,1,2,1,1,1,1,3, %T A030336 2,2,1,1,1,1,1,1,1,1,2,1,1,1,1,2,1,1,1,1,4,3,3,2,1,2,2,2,1,2,2,1,2,1, %U A030336 1,1,1,1,1,1,1,1,1,1,1,1,2,1,1,1,1,1,1,1,1,1 %N A030336 Length of n-th run of digit 0 in A003137. %H A030336 Reinhard Zumkeller, <a href="/A030336/b030336.txt">Table of n, a(n) for n = 1..10000</a> %o A030336 (Haskell) %o A030336 import Data.List (group) %o A030336 a030336 n = a030336_list !! (n-1) %o A030336 a030336_list = map length $ filter ((== 0) . head) $ group a003137_list %o A030336 -- _Reinhard Zumkeller_, Feb 21 2013 %Y A030336 Cf. A030337, A030338, A030332. %K A030336 nonn,base %O A030336 1,3 %A A030336 _Clark Kimberling_