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A069046 as a simple table

n a(n)
1 1
2 4
3 36
4 144
5 3600
6 3600
7 176400
8 705600
9 6350400
10 31752000
11 3841992000
12 3841992000
13 649296648000
14 649296648000
15 129859329600
16 519437318400
17 150117385017600
18 150117385017600
19 54192375991353600
20 270961879956768000

[1,4,36,144,3600,3600,176400,705600,6350400,
 31752000,3841992000,3841992000,649296648000,
 649296648000,129859329600,519437318400,
 150117385017600,150117385017600,54192375991353600,
 270961879956768000]

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Last modified September 21 16:31 EDT 2021. Contains 347598 sequences. (Running on oeis4.)