A096422 - OEIS

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A096422 as a simple table

n	a(n)
1	1
2	1
3	1
4	3
5	7
6	15
7	99
8	1435
9	43275
10	8578251
11	24621639595
12	2131004779672875
13	36560587838053629502251
14	1800363234260399608908512798220715
15	7673165314712455021114657638259282344591507976875

[1,1,1,3,7,15,99,1435,43275,8578251,24621639595, 2131004779672875,36560587838053629502251, 1800363234260399608908512798220715, 7673165314712455021114657638259282344591507976875]