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 A027237 #9 Oct 25 2019 16:55:05 %S A027237 1,2,6,27,92,453,1616,8284,30254,159435,590374,3178992,11878204, %T A027237 65099245,244797592,1361584755,5144714416,28975155915,109899043030, %U A027237 625578384150,2380191727582,13672762887465,52161061683208,301987822527627,1154761251687762,6730778868555523 %N A027237 Sum of squares of numbers in row n of array T given by A026758. %K A027237 nonn %O A027237 0,2 %A A027237 _Clark Kimberling_ %E A027237 More terms from _Sean A. Irvine_, Oct 24 2019