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Search: id:A001346
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| A001346 |
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Sum (n+k)! C(4,k), k = 0 . . 4. (Formerly M5134)
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+0 2
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| 23, 65, 261, 1370, 8742, 65304, 557400, 5343120, 56775600, 661933440, 8397406080, 115123680000, 1695705580800, 26701944192000, 447579574041600, 7955978033203200, 149473718634240000
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