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A130563 as a simple table

n a(n)
3 1
4 36
5 990
6 25740
7 675675
8 18378360
9 523783260
10 15713497800
11 496939367925
12 16564645597500
13 581419060472250
14 21459648959248500
15 831561397170879375
16 33774185977401870000
17 1435402904039579475000
18 63731888939357328690000

[1,36,990,25740,675675,18378360,523783260,
 15713497800,496939367925,16564645597500,
 581419060472250,21459648959248500,
 831561397170879375,33774185977401870000,
 1435402904039579475000,63731888939357328690000]

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Last modified May 7 15:02 EDT 2021. Contains 343650 sequences. (Running on oeis4.)