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A181161 as a simple table

n a(n)
0 1
1 1
2 9
3 51
4 1275
5 8415
6 115005
7 805035
8 45886995
9 331406075
10 4838528695
11 35629165845
12 1056998586735
13 7886835608715
14 118302534130725
15 891212423784795
16 107836703277960195
17 818290277815109715

[1,1,9,51,1275,8415,115005,805035,45886995,
 331406075,4838528695,35629165845,1056998586735,
 7886835608715,118302534130725,891212423784795,
 107836703277960195,818290277815109715]

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Last modified December 3 15:15 EST 2021. Contains 349463 sequences. (Running on oeis4.)