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A056612 as a simple table

n a(n)
1 1
2 1
3 1
4 2
5 2
6 36
7 36
8 144
9 144
10 1440
11 1440
12 17280
13 17280
14 241920
15 3628800
16 29030400
17 29030400
18 1567641600
19 1567641600
20 156764160000
21 9876142080000
22 217275125760000
23 217275125760000
24 1738201006080000
25 1738201006080000

[1,1,1,2,2,36,36,144,144,1440,1440,17280,17280,
 241920,3628800,29030400,29030400,1567641600,
 1567641600,156764160000,9876142080000,
 217275125760000,217275125760000,1738201006080000,
 1738201006080000]

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Last modified March 29 08:13 EDT 2024. Contains 371265 sequences. (Running on oeis4.)