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A090830 as a simple table

n a(n)
0 1
1 1
2 1
3 3
4 12
5 60
6 120
7 840
8 1680
9 5040
10 5040
11 55440
12 110880
13 1441440
14 1441440
15 1441440
16 1441440
17 24504480
18 24504480
19 465585120
20 931170240

[1,1,1,3,12,60,120,840,1680,5040,5040,55440,
 110880,1441440,1441440,1441440,1441440,24504480,
 24504480,465585120,931170240]

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Last modified June 4 11:04 EDT 2024. Contains 373096 sequences. (Running on oeis4.)