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A340938 as a simple table

n a(n)
0 1
1 1
2 2
3 12
4 96
5 1120
6 16260
7 290640
8 6108480
9 148353408
10 4081855680
11 125613124560
12 4274457264000
13 159409774592640
14 6465790781049600
15 283412493387223200
16 13350812617606464000
17 672683432660494295040
18 36100038651180773068800

[1,1,2,12,96,1120,16260,290640,6108480,148353408,
 4081855680,125613124560,4274457264000,
 159409774592640,6465790781049600,
 283412493387223200,13350812617606464000,
 672683432660494295040,36100038651180773068800]

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)