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A093130 as a simple table

n a(n)
0 0
1 2
2 20
3 160
4 1200
5 8800
6 64000
7 464000
8 3360000
9 24320000
10 176000000
11 1273600000
12 9216000000
13 66688000000
14 482560000000
15 3491840000000
16 25267200000000
17 182835200000000
18 1323008000000000
19 9573376000000000

[0,2,20,160,1200,8800,64000,464000,3360000,
 24320000,176000000,1273600000,9216000000,
 66688000000,482560000000,3491840000000,
 25267200000000,182835200000000,1323008000000000,
 9573376000000000]

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Last modified April 24 14:54 EDT 2024. Contains 371960 sequences. (Running on oeis4.)