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A118963 Triangle read by rows: T(n,k) is the number of Grand Dyck paths of semilength n that have k double rises (n>=1,k>=0). +0
2
2, 3, 3, 4, 12, 4, 5, 30, 30, 5, 6, 60, 120, 60, 6, 7, 105, 350, 350, 105, 7, 8, 168, 840, 1400, 840, 168, 8, 9, 252, 1764, 4410, 4410, 1764, 252, 9, 10, 360, 3360, 11760, 17640, 11760, 3360, 360, 10, 11, 495, 5940, 27720, 58212, 58212, 27720, 5940, 495, 11, 12 (list; table; graph; listen)
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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


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