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A013455 as a simple table

n a(n)
0 1
1 0
2 0
3 160
4 0
5 261120
6 19712000
7 1538068480
8 557613056000
9 72297758064640
10 26395258519552000
11 9009548633571328000
12 3030117499561574400000
13 1720760994441294994472960
14 838542041341593366036480000
15 545911029456375473017632849920
16 403794537898256808435202916352000

[1,0,0,160,0,261120,19712000,1538068480,
 557613056000,72297758064640,26395258519552000,
 9009548633571328000,3030117499561574400000,
 1720760994441294994472960,
 838542041341593366036480000,
 545911029456375473017632849920,
 403794537898256808435202916352000]

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Last modified May 13 03:04 EDT 2024. Contains 372497 sequences. (Running on oeis4.)