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A338787 as a simple table

n a(n)
1 0
2 1
3 3
4 35
5 110
6 1594
7 8064
8 125292
9 684144
10 14215536
11 102769920
12 2367099360
13 18380943360
14 463602216960
15 4776780072960
16 141702567955200
17 1382620380825600
18 46390044372940800
19 550153713457152000
20 19877486361997824000
21 261552662423506944000
22 9914502028911427584000
23 146055669195092557824000

[0,1,3,35,110,1594,8064,125292,684144,14215536,
 102769920,2367099360,18380943360,463602216960,
 4776780072960,141702567955200,1382620380825600,
 46390044372940800,550153713457152000,
 19877486361997824000,261552662423506944000,
 9914502028911427584000,146055669195092557824000]

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Last modified August 29 13:55 EDT 2024. Contains 375517 sequences. (Running on oeis4.)