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A271670 as a simple table

n a(n)
0 1
1 0
2 84
3 1680
4 66276
5 2731680
6 128704800
7 6555265920
8 355588928100
9 20247799145280
10 1198746727590384
11 73266532153214400
12 4598338364703822816
13 295145004688715301120
14 19311431876483926443264

[1,0,84,1680,66276,2731680,128704800,6555265920,
 355588928100,20247799145280,1198746727590384,
 73266532153214400,4598338364703822816,
 295145004688715301120,19311431876483926443264]

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Last modified March 28 18:04 EDT 2024. Contains 371254 sequences. (Running on oeis4.)