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 A291930 #8 Sep 06 2017 11:06:06 %S A291930 1,1,2,5,11,26,60,139,321,743,1716,3965,9158,21152,48848,112808, %T A291930 260500,601553,1389096,3207660,7406989,17103860,39495306,91200333, %U A291930 210594475,486292240,1122916743,2592971247,5987531168,13826041086,31926247578,73722134145,170234630412 %N A291930 Row sums of A291929. %H A291930 Seiichi Manyama, <a href="/A291930/b291930.txt">Table of n, a(n) for n = 0..2752</a> %Y A291930 Cf. A291896, A291905. %K A291930 nonn %O A291930 0,3 %A A291930 _Seiichi Manyama_, Sep 06 2017