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A200142 as a simple table

n a(n)
1 3
2 30
3 315
4 3780
5 51975
6 810810
7 14189175
8 275675400
9 5892561675
10 137493105750
11 3478575575475
12 94870242967500
13 2774954606799375
14 86663966950811250
15 2878481759437659375
16 101322557932205610000
17 3767932623103896121875
18 147614301587482048068750

[3,30,315,3780,51975,810810,14189175,275675400,
 5892561675,137493105750,3478575575475,
 94870242967500,2774954606799375,86663966950811250,
 2878481759437659375,101322557932205610000,
 3767932623103896121875,147614301587482048068750]

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Last modified August 10 08:52 EDT 2024. Contains 375044 sequences. (Running on oeis4.)