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 A251548 #14 Dec 19 2014 14:24:35 %S A251548 1,2,6,6,15,2,6,2,7,8,13,2,2,7,2,13,2,5,2,6,5,2,11,5,2,8,2,2,2,5,5,2, %T A251548 15,2,2,2,4,2,2,2,13,2,2,2,5,7,2,4,2,8,2,2,2,3,4,8,2,2,2,2,2,14,2,2,2, %U A251548 2,10,2,2,2,2 %N A251548 Lengths of runs of identical terms in A251546. %H A251548 Chai Wah Wu, <a href="/A251548/b251548.txt">Table of n, a(n) for n = 1..10000</a> %o A251548 (Haskell) %o A251548 import Data.List (group) %o A251548 a251548 n = a251548_list !! (n-1) %o A251548 a251548_list = map length $ group $ map a251546 [1..] %o A251548 -- _Reinhard Zumkeller_, Dec 19 2014 %Y A251548 Cf. A098550, A247253, A251416, A251417, A251546-A251552. %K A251548 nonn %O A251548 1,2 %A A251548 _N. J. A. Sloane_, Dec 18 2014