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A106376
Number of binary trees (each vertex has 0, or 1 left, or 1 right, or 2 children) with n edges and having all leaves at the same level.
+0
2
2, 5, 10, 24, 52, 121, 258, 616, 1344, 3128, 6996, 16160, 36248, 85041, 191298, 444168, 1019328, 2359392, 5405488, 12625336, 29066304, 67659824, 156911364, 365683744, 849401072, 1987046192, 4624252776, 10816019328
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Maintained by
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Last modified November 23 17:09 EST 2009. Contains 167438 sequences.
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