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Given n nodes. Find the number of different structural
binary trees that can be formed using the nodes.

Answer Posted / hitesh viradiya

m = 1 2 3 4 5 6 7 8
n=1 1
2 1 1
3 2 2 1
4 5 5 3 1
5 14 14 9 4 1
6 42 42 28 14 5 1
7 132 132 90 48 20 6 1
8 429 429 297 165 75 27 7 1

(2n)!/[(n+1)!n!]

Is This Answer Correct ?    135 Yes 16 No



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