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A256982 as a simple table

n a(n)
1 1
2 1
3 2
4 6
5 15
6 51
7 190
8 767
9 3256
10 14420
11 65298
12 301920
13 1416398
14 6730574
15 32315128

[1,1,2,6,15,51,190,767,3256,14420,65298,301920,
 1416398,6730574,32315128]

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Last modified August 19 07:13 EDT 2022. Contains 356216 sequences. (Running on oeis4.)