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 A375547 #6 Sep 19 2024 08:19:48 %S A375547 1,1,4,12,42,120,415,1253,4078,12771,40518,126632,397349,1236040, %T A375547 3841920,11889451,36715750,113045937,347354344,1064918707,3258926926, %U A375547 9955461682,30365091843,92481086124,281292738961,854535966415,2593061420285,7860317530140,23803789290534 %N A375547 Row sums of A375546. %Y A375547 Cf. A375546. %K A375547 nonn %O A375547 0,3 %A A375547 _Peter Luschny_, Sep 15 2024