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 A322501 #8 Dec 22 2018 03:35:05 %S A322501 1,1,34,621,10687,181615,3086898,52338705,888837716,15029968375, %T A322501 254605651987,4312608660046,73048456842772,1237312902210617, %U A322501 20957926357019583,354990566329457044,6012925190578975735,101848368521145389471,1725133116479186659346 %N A322501 Number of tilings of an 8 X n rectangle using V (2m+1)-ominoes (m >= 0) in standard orientation. %C A322501 The shapes of the tiles are: %C A322501 ._. %C A322501 ._. | | %C A322501 ._. | | | | %C A322501 ._. | |_. | |_._. | |_._._. %C A322501 |_| |___| |_____| |_______| ... . %H A322501 Alois P. Heinz, <a href="/A322501/b322501.txt">Table of n, a(n) for n = 0..500</a> %H A322501 Wikipedia, <a href="https://en.wikipedia.org/wiki/Polyomino">Polyomino</a> %Y A322501 Column k=8 of A322494. %K A322501 nonn %O A322501 0,3 %A A322501 _Alois P. Heinz_, Dec 12 2018