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A008301 Poupard's triangle: triangle of numbers arising in enumeration of binary trees. +0
8
1, 1, 2, 1, 4, 8, 10, 8, 4, 34, 68, 94, 104, 94, 68, 34, 496, 992, 1420, 1712, 1816, 1712, 1420, 992, 496, 11056, 22112, 32176, 40256, 45496, 47312, 45496, 40256, 32176, 22112, 11056, 349504, 699008, 1026400, 1309568, 1528384, 1666688, 1714000 (list; graph; listen)
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Last modified December 1 19:22 EST 2009. Contains 167811 sequences.

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