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A263289 as a simple table

n a(n)
1 0
2 42
3 504
4 6960
5 113028
6 1428036
7 21015946
8 282937866
9 3899304030
10 54249804504
11 760179391290
12 10624299994980
13 148755958233888
14 2082595517998488
15 29160130611965550
16 408200027705513862
17 5715110419878541186

[0,42,504,6960,113028,1428036,21015946,282937866,
 3899304030,54249804504,760179391290,
 10624299994980,148755958233888,2082595517998488,
 29160130611965550,408200027705513862,
 5715110419878541186]

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Last modified July 4 20:49 EDT 2022. Contains 355086 sequences. (Running on oeis4.)