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A027801
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5*(n+1)*binomial(n+4,5)/2.
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1
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5, 45, 210, 700, 1890, 4410, 9240, 17820, 32175, 55055, 90090, 141960, 216580, 321300, 465120, 658920, 915705, 1250865, 1682450, 2231460, 2922150, 3782350, 4843800, 6142500, 7719075, 9619155, 11893770, 14599760, 17800200
(list; graph; refs; listen; history; internal format)
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