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A216629 as a simple table

n a(n)
0 1
1 1
2 2
3 12
4 18
5 540
6 1200
7 168000
8 735000
9 463050000
10 4667544000
11 12938431968000
12 332086420512000
13 3989022083190144000
14 279394363051195392000
15 14383221809875538780160000
16 2892376010829659126572800000
17 632822947409421120302862912000000

[1,1,2,12,18,540,1200,168000,735000,463050000,
 4667544000,12938431968000,332086420512000,
 3989022083190144000,279394363051195392000,
 14383221809875538780160000,
 2892376010829659126572800000,
 632822947409421120302862912000000]

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Last modified September 19 01:51 EDT 2024. Contains 376002 sequences. (Running on oeis4.)