A322501 - OEIS

%I #8 Dec 22 2018 03:35:05

%S 1,1,34,621,10687,181615,3086898,52338705,888837716,15029968375,

%T 254605651987,4312608660046,73048456842772,1237312902210617,

%U 20957926357019583,354990566329457044,6012925190578975735,101848368521145389471,1725133116479186659346

%N Number of tilings of an 8 X n rectangle using V (2m+1)-ominoes (m >= 0) in standard orientation.

%C The shapes of the tiles are:

%C                        ._.

%C               ._.      | |

%C        ._.    | |      | |

%C   ._.  | |_.  | |_._.  | |_._._.

%C   |_|  |___|  |_____|  |_______|  ... .

%H Alois P. Heinz, <a href="/A322501/b322501.txt">Table of n, a(n) for n = 0..500</a>

%H Wikipedia, <a href="https://en.wikipedia.org/wiki/Polyomino">Polyomino</a>

%Y Column k=8 of A322494.

%K nonn

%O 0,3

%A _Alois P. Heinz_, Dec 12 2018