A232758 Number of tilings of a 5 X 4n rectangle with 5n tetrominoes of any shape.

1, 454, 800290, 1601437357, 3241461223149, 6567785027546670, 13308739956169022829, 26968602201880345700924, 54648749693738816337819872, 110739369582262512718466467943, 224400523235840773380469046439552, 454721704049686545819883721501971896

Offset

0,2

Links

Alois P. Heinz, Table of n, a(n) for n = 0..250

S. Butler, J. Ekstrand, S. Osborne, TETRIS Tiling, AMS Spring Central Sectional, Iowa State University, April 27-28 2013

R. S. Harris, Counting Polyomino Tilings

Wikipedia, Tetris

Wikipedia, Tetromino

Crossrefs

Quadrisection of column k=5 of A230031.

Sequence in context: A297658 A219006 A092267 * A284430 A206338 A123563

Adjacent sequences: A232755 A232756 A232757 * A232759 A232760 A232761

Keyword

nonn

Author

Alois P. Heinz, Nov 29 2013

Status

approved