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 A251078 #8 Feb 06 2017 18:24:23 %S A251078 1,1,1,1,1,1,1,1,1,76,195,364,589,876,1231,1660,2169,2764,21232,57379, %T A251078 123291,235860,417784,698657,1116149,1717276,2559760,7386240,18797731, %U A251078 42769684,89201688,173879976,321141337,567405676,965768880,1591873744,3298800992 %N A251078 Number of tilings of a 27 X n rectangle using 3n nonominoes of shape I. %H A251078 Alois P. Heinz, <a href="/A251078/b251078.txt">Table of n, a(n) for n = 0..190</a> %H A251078 Wikipedia, <a href="https://en.wikipedia.org/wiki/Nonomino">Nonomino</a> %Y A251078 Column k=9 of A251072. %Y A251078 Cf. A250666. %K A251078 nonn %O A251078 0,10 %A A251078 _Alois P. Heinz_, Nov 29 2014