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A232722
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Number of tilings of a 10 X 2n rectangle with 5n tetrominoes of any shape.
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5
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1, 64, 796558, 2569437089, 14571957312254, 72713560548906621, 384821695402098361211, 2010131712836219582393758, 10562717745357186307808646827, 55429948254413509959115263015669, 291053238120184913211835376456587574, 1528063805458061047577398579978736135916
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OFFSET
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0,2
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LINKS
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S. Butler, J. Ekstrand, S. Osborne, TETRIS Tiling, AMS Spring Central Sectional, Iowa State University, April 27-28 2013
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CROSSREFS
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Even bisection of column k=10 of A230031.
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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