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 A350466 #4 Apr 09 2022 14:40:30 %S A350466 1,-1,2,-2,-20,54,894,38746,-559964,-30609658,-31739522,35082324322, %T A350466 1906861094012,-35137055357704,-9062074392580500,-356229387136444332, %U A350466 29618152958504386488,5528234516989447402962,199584070046140925795142,-46670714204947255394726486 %N A350466 Alternating row sums of A350464. %Y A350466 Cf. A350464. %K A350466 sign %O A350466 0,3 %A A350466 _Peter Luschny_, Mar 13 2022