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%I #13 Feb 07 2017 17:25:14
%S 1,454,800290,1601437357,3241461223149,6567785027546670,
%T 13308739956169022829,26968602201880345700924,
%U 54648749693738816337819872,110739369582262512718466467943,224400523235840773380469046439552,454721704049686545819883721501971896
%N Number of tilings of a 5 X 4n rectangle with 5n tetrominoes of any shape.
%H Alois P. Heinz, <a href="/A232758/b232758.txt">Table of n, a(n) for n = 0..250</a>
%H S. Butler, J. Ekstrand, S. Osborne, <a href="/A230031/a230031.pdf">TETRIS Tiling</a>, AMS Spring Central Sectional, Iowa State University, April 27-28 2013
%H R. S. Harris, <a href="http://www.bumblebeagle.org/polyominoes/tilingcounting">Counting Polyomino Tilings</a>
%H Wikipedia, <a href="https://en.wikipedia.org/wiki/Tetris">Tetris</a>
%H Wikipedia, <a href="https://en.wikipedia.org/wiki/Tetromino">Tetromino</a>
%Y Quadrisection of column k=5 of A230031.
%K nonn
%O 0,2
%A _Alois P. Heinz_, Nov 29 2013
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