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A260620 as a simple table

n a(n)
0 0
1 0
2 1
3 16
4 912
5 179712
6 200724480
7 1389079756800
8 78810485096448000
9 38096713995308236800000
10 177372596340389981454336000000
11 8666143442523657424202209689600000000
12 5080543621153782266150614213475696640000000000 

[0,0,1,16,912,179712,200724480,1389079756800,
 78810485096448000,38096713995308236800000,
 177372596340389981454336000000,
 8666143442523657424202209689600000000,
 5080543621153782266150614213475696640000000000]

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Last modified May 13 13:35 EDT 2024. Contains 372519 sequences. (Running on oeis4.)