Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).
%I #6 Aug 25 2013 17:48:47
%S 1,1,89,1278,33636,715072,16350693,364647622,8201909757,183947396032,
%T 4129523869606,92675094208964,2080048909984067,46684042670495080,
%U 1047776070980376086,23516183336037445861,527795545850035568780,11845801476106616135344
%N Number of tilings of a 10 X n rectangle using 1 X 1 squares and L-tiles.
%C An L-tile is a 2 X 2 square with the upper right 1 X 1 subsquare removed and no rotations are allowed.
%H Alois P. Heinz, <a href="/A226544/b226544.txt">Table of n, a(n) for n = 0..500</a>
%H Alois P. Heinz, <a href="/A226544/a226544.txt">G.f. for A226544</a>
%Y Column k=10 of A226444.
%K nonn
%O 0,3
%A _Alois P. Heinz_, Jun 10 2013