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A052585 as a simple table

n a(n)
0 1
1 1
2 6
3 30
4 264
5 2520
6 30960
7 428400
8 6894720
9 123742080
10 2478470400
11 54486432000
12 1308153369600
13 34005760588800
14 952248474777600
15 28566146568960000
16 914137612996608000
17 31080323154456576000
18 1118898035934142464000
19 42518003720397004800000

[1,1,6,30,264,2520,30960,428400,6894720,123742080,
 2478470400,54486432000,1308153369600,
 34005760588800,952248474777600,28566146568960000,
 914137612996608000,31080323154456576000,
 1118898035934142464000,42518003720397004800000]

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Last modified June 24 00:14 EDT 2021. Contains 345403 sequences. (Running on oeis4.)