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A027819
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7*(n+1)*C(n+6,7)/2.
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1
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7, 84, 504, 2100, 6930, 19404, 48048, 108108, 225225, 440440, 816816, 1447992, 2469012, 4069800, 6511680, 10147368, 15444891, 23015916, 33649000, 48348300, 68378310, 95315220, 131105520, 178132500, 239291325, 318073392
(list; graph; refs; listen; history; internal format)
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