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 A323480 #10 Feb 13 2019 10:39:53 %S A323480 1,0,1,1,1,1,2,2,3,5,4,9,5,1,15,6,2,1,26,7,3,3,42,9,4,7,67,12,6,12,1, %T A323480 108,16,11,18,3,173,21,19,26,8,277,27,31,36,19,437,35,50,49,40,684,45, %U A323480 83,64,77,1067,57,144,81,136,1661,71,255,101,226,2588,87 %N A323480 Irregular triangle read by rows: T(n,k) (n>=1) = number of runs of length k (k>=1) in n-th generation of A306211. %H A323480 Lars Blomberg, <a href="/A323480/b323480.txt">Table of n, a(n) for n = 1..251</a> (The first 55 generations) %e A323480 Triangle begins: %e A323480 1, %e A323480 0, 1, %e A323480 1, 1, %e A323480 1, 2, %e A323480 2, 3, %e A323480 5, 4, %e A323480 9, 5, 1, %e A323480 15, 6, 2, 1, %e A323480 26, 7, 3, 3, %e A323480 42, 9, 4, 7, %e A323480 67, 12, 6, 12, 1, %e A323480 108, 16, 11, 18, 3, %e A323480 ... %Y A323480 Cf. A306211, A306215, A323477. %K A323480 nonn,tabf %O A323480 1,7 %A A323480 _N. J. A. Sloane_, Jan 31 2019 %E A323480 a(23)-a(68) from _Lars Blomberg_, Feb 13 2019