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 A027229 #8 Oct 25 2019 04:57:27 %S A027229 1,2,11,34,184,632,3452,12360,68290,249882,1395696,5175366,29193025, %T A027229 109227518,621609060,2340986206,13428450520,50823832190,293606387095, %U A027229 1115643664834,6485734373020,24724763566380,144544075759391,552543417604744,3246390604086969,12439310663680032 %N A027229 a(n) = sum of squares of numbers in row n of array T given by A026747. %K A027229 nonn %O A027229 0,2 %A A027229 _Clark Kimberling_ %E A027229 More terms from _Sean A. Irvine_, Oct 24 2019