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A035520 as a simple table

n a(n)
1 0
2 0
3 0
4 1
5 30
6 705
7 15960
8 370125
9 8998290
10 231416325
11 6314962500
12 182894567625
13 5615811951750
14 182497749258825
15 6264206330382000
16 226636350724909125
17 8624703350821808250
18 344535241891693978125
19 14419858385821910521500

[0,0,0,1,30,705,15960,370125,8998290,231416325,
 6314962500,182894567625,5615811951750,
 182497749258825,6264206330382000,
 226636350724909125,8624703350821808250,
 344535241891693978125,14419858385821910521500]

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Last modified March 28 15:38 EDT 2024. Contains 371254 sequences. (Running on oeis4.)