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 A243316 #4 Jun 03 2014 09:27:32 %S A243316 1,89,1009056,3711809483,18283618480037,84080327982982848, %T A243316 393283923444213896309,1832013557267266441097285, %U A243316 8542571199105608333942735840,39823725482559144291828665014967,185661218973084382181156348510614065,865553976307450198923428125167024054656 %N A243316 Number of ways to reciprocally link elements of an n X 10 array either to themselves or to exactly one king-move neighbor. %H A243316 Alois P. Heinz, <a href="/A243316/b243316.txt">Table of n, a(n) for n = 0..100</a> %Y A243316 Column k=10 of A220644. %K A243316 nonn %O A243316 0,2 %A A243316 _Alois P. Heinz_, Jun 03 2014