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A221157
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Number of compositions of the grid graph G_{4,n}.
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2
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8, 456, 27780, 1691690, 103015508, 6273056950, 381992581548, 23261112447444, 1416465537909008, 86254456382365422, 5252391281433321840, 319839870650458477666, 19476375116903366115612, 1185997189541765630381252, 72220283556802506132778356, 4397792341346509099717980618, 267799799794395524429805470412, 16307439552264147863293668460374
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OFFSET
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1,1
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LINKS
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CROSSREFS
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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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