cp's OEIS Frontend

A322502 Number of tilings of a 9 X n rectangle using V (2m+1)-ominoes (m >= 0) in standard orientation.

%I A322502 #4 Dec 12 2018 15:55:00
%S A322502 1,1,55,1500,38097,957006,24009733,600923375,15029968375,376116199534,
%T A322502 9394097589045,234816663728554,5869407851857410,146709570371173411,
%U A322502 3667093829512515427,91661210468678400305,2291126428942263984999,57268064504720859650768
%N A322502 Number of tilings of a 9 X n rectangle using V (2m+1)-ominoes (m >= 0) in standard orientation.
%C A322502 The shapes of the tiles are:
%C A322502                        ._.
%C A322502               ._.      | |
%C A322502        ._.    | |      | |
%C A322502   ._.  | |_.  | |_._.  | |_._._.
%C A322502   |_|  |___|  |_____|  |_______|  ... .
%H A322502 Alois P. Heinz, <a href="/A322502/b322502.txt">Table of n, a(n) for n = 0..300</a>
%H A322502 Wikipedia, <a href="https://en.wikipedia.org/wiki/Polyomino">Polyomino</a>
%Y A322502 Column k=9 of A322494.
%K A322502 nonn
%O A322502 0,3
%A A322502 _Alois P. Heinz_, Dec 12 2018