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A365586 as a simple table

n a(n)
0 1
1 3
2 27
3 390
4 7770
5 197520
6 6108720
7 222585360
8 9337369920
9 443180705520
10 23478556469040
11 1373311758143520
12 87902002849402080
13 6111187336982764800
14 458573390187299798400
15 36939974397639066086400
16 3179423992959428231894400
17 291190738388834303603395200

[1,3,27,390,7770,197520,6108720,222585360,
 9337369920,443180705520,23478556469040,
 1373311758143520,87902002849402080,
 6111187336982764800,458573390187299798400,
 36939974397639066086400,3179423992959428231894400,
 291190738388834303603395200]

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Last modified July 20 23:17 EDT 2024. Contains 374461 sequences. (Running on oeis4.)