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A370570 as a simple table

n a(n)
0 1
1 1
2 1
3 3
4 17
5 95
6 594
7 4280
8 35018
9 320636
10 3249951
11 36140133
12 437572800
13 5731086422
14 80745062993
15 1217782176949
16 19576722067015
17 334183547442139
18 6037316140379389
19 115082343658784617
20 2308352556410956084
21 48602560660569621128
22 1071794851776260190000

[1,1,1,3,17,95,594,4280,35018,320636,3249951,
 36140133,437572800,5731086422,80745062993,
 1217782176949,19576722067015,334183547442139,
 6037316140379389,115082343658784617,
 2308352556410956084,48602560660569621128,
 1071794851776260190000]

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Last modified August 12 09:11 EDT 2024. Contains 375085 sequences. (Running on oeis4.)