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 A291958 #8 Sep 07 2017 02:46:14 %S A291958 1,1,-1,2,-1,-1,3,-2,0,2,-3,2,2,-4,2,2,-5,5,0,-6,7,-1,-6,9,-5,-5,12, %T A291958 -9,-1,12,-12,0,12,-15,4,13,-19,9,11,-22,13,9,-27,21,5,-28,29,-1,-30, %U A291958 34,-8,-29,44,-18,-28,51,-28,-22,57,-42,-16,63,-53,-6,66,-70,7,67 %N A291958 Row sums of A291957. %H A291958 Seiichi Manyama, <a href="/A291958/b291958.txt">Table of n, a(n) for n = 0..10000</a> %Y A291958 Cf. A291942. %K A291958 sign %O A291958 0,4 %A A291958 _Seiichi Manyama_, Sep 06 2017