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 A295227 #4 Nov 22 2017 01:39:41
%S A295227 1,0,1,1,5,45,698,16936,594702,28564021,1799119626,143863537330,
%T A295227 14236046853139,1707698666758297,244136528082097062,
%U A295227 41008147506862052681,7995945735393199219626,1791074412870104676689001,456745672286592586379503743
%N A295227 a(n) = sum_{k=0,...,[n/2]} s(n-k,k)^2, s = A048994, Stirling numbers of the first kind.
%H A295227 Edyta Hetmaniok, Barbara Smoleń, Roman Wituła, <a href="http://ceur-ws.org/Vol-1853/p07.pdf">The Stirling triangles</a>, Proceedings of the Symposium for Young Scientists in Technology, Engineering and Mathematics (SYSTEM 2017), Kaunas, Lithuania, April 28, 2017, p. 35-41.
%K A295227 nonn
%O A295227 0,5
%A A295227 _Eric M. Schmidt_, Nov 18 2017