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A106440
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Binomial(2n+4,n)*binomial(n+4,4).
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1, 30, 420, 4200, 34650, 252252, 1681680, 10501920, 62355150, 355655300, 1963217256, 10546208400, 55367594100, 285028443000, 1442592936000, 7193730107520, 35406640372950, 172255143129300, 829376615067000
(list; graph; refs; listen; history; internal format)
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