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 A352371 #3 Mar 15 2022 10:26:59 %S A352371 1,-1,-1,-1,5,49,259,741,-3263,-76915,-782089,-5173763,-9197123, %T A352371 389152919,8099637883,102525854939,853355714673,931100151549, %U A352371 -140777397537929,-3587404181388531,-58439969237350259,-649453301904349909,-2064509243175655605,131896195608069986079 %N A352371 Alternating row sums of A352369. %Y A352371 Cf. A352369. %K A352371 sign %O A352371 0,5 %A A352371 _Peter Luschny_, Mar 15 2022