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A218385 as a simple table

n a(n)
1 4
2 90
3 560
4 4032
5 302400
6 34214400
7 415134720
8 5448643200
9 1162377216000
10 320118685286400
11 5792623828992000
12 110586454917120000
13 46833363657400320000
14 1034080669555399065600
15 23863400066663055360000
16 574489260864110592000000
17 14403266468807344128000000
18 10162944820390462016716800000

[4,90,560,4032,302400,34214400,415134720,
 5448643200,1162377216000,320118685286400,
 5792623828992000,110586454917120000,
 46833363657400320000,1034080669555399065600,
 23863400066663055360000,574489260864110592000000,
 14403266468807344128000000,
 10162944820390462016716800000]

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Last modified April 25 11:43 EDT 2019. Contains 322456 sequences. (Running on oeis4.)