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 A375382 #7 Aug 13 2024 16:28:27
%S A375382 1,3,4,6,10,16,26,52,108,240,574,1566,4542,14998,51080,193986,776946,
%T A375382 3396530,15302498,75908634,384194222,2104919470,11853419616,
%U A375382 71548745928,440446031112,2912298313022,19496636176860,139215008197810,1012273345561864,7779962149588026
%N A375382 a(n) = Sum_{k=1..n} abs(A375383(n, k)).
%Y A375382 Cf. A375383.
%K A375382 nonn
%O A375382 1,2
%A A375382 _Peter Luschny_, Aug 13 2024