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A056125
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a(n)=[5n+4]*C(n+7,7)/4.
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1
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1, 18, 126, 570, 1980, 5742, 14586, 33462, 70785, 140140, 262548, 469404, 806208, 1337220, 2151180, 3368244, 5148297, 7700814, 11296450, 16280550, 23088780, 32265090, 44482230, 60565050, 81516825, 108548856, 143113608, 186941656
(list; graph; refs; listen; history; internal format)
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