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 A251079 #8 Feb 06 2017 18:24:48 %S A251079 1,1,1,1,1,1,1,1,1,1,89,225,415,665,981,1369,1835,2385,3025,3761, %T A251079 30169,79903,167957,314911,548011,902339,1422073,2161837,3188141, %U A251079 4580911,12815576,31665861,70135406,142741143,272097694,492367347,853768306,1428360119 %N A251079 Number of tilings of a 30 X n rectangle using 3n decominoes of shape I. %H A251079 Alois P. Heinz, <a href="/A251079/b251079.txt">Table of n, a(n) for n = 0..100</a> %H A251079 Wikipedia, <a href="https://en.wikipedia.org/wiki/Decomino">Decomino</a> %Y A251079 Column k=10 of A251072. %Y A251079 Cf. A250667. %K A251079 nonn %O A251079 0,11 %A A251079 _Alois P. Heinz_, Nov 29 2014