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 A347596 #5 Sep 12 2021 04:26:22 %S A347596 1,-1,-2,0,8,0,-32,0,128,0,-512,0,2048,0,-8192,0,32768,0,-131072,0, %T A347596 524288,0,-2097152,0,8388608,0,-33554432,0,134217728,0,-536870912,0, %U A347596 2147483648,0,-8589934592,0,34359738368,0,-137438953472,0,549755813888,0,-2199023255552 %N A347596 Alternating row sums of A346837. %Y A347596 Cf. A346837. %K A347596 sign %O A347596 0,3 %A A347596 _Peter Luschny_, Sep 11 2021