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A110237 Triangle read by rows: T(n,k) (0<=k<=ceil(n/2)-1) is the number of (1,0) steps at level k in all peakless Motzkin paths of length n (can be easily translated into RNA secondary structure terminology). +0
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1, 2, 3, 1, 6, 4, 13, 10, 1, 28, 24, 6, 62, 59, 21, 1, 140, 144, 62, 8, 320, 350, 174, 36, 1, 740, 852, 474, 128, 10, 1728, 2077, 1263, 410, 55, 1, 4068, 5072, 3318, 1240, 230, 12, 9645, 12412, 8634, 3608, 835, 78, 1, 23010, 30440, 22314, 10216, 2792, 376, 14 (list; graph; listen)
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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


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