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A013433 as a simple table

n a(n)
0 0
1 1
2 15
3 495
4 28735
5 2597175
6 337740975
7 59815330575
8 13857008709375
9 4071452200086375
10 1480690661198331375
11 653488912610356197375
12 344332933648569891309375
13 213657034023415650312084375

[0,1,15,495,28735,2597175,337740975,59815330575,
 13857008709375,4071452200086375,
 1480690661198331375,653488912610356197375,
 344332933648569891309375,
 213657034023415650312084375]

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Last modified December 1 20:01 EST 2021. Contains 349430 sequences. (Running on oeis4.)