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A051133 as a simple table

n a(n)
0 0
1 3
2 30
3 210
4 1260
5 6930
6 36036
7 180180
8 875160
9 4157010
10 19399380
11 89237148
12 405623400
13 1825305300
14 8143669800
15 36064823400
16 158685222960
17 694247850450
18 3022020054900
19 13095420237900
20 56517076816200
21 243023430309660
22 1041528987041400

[0,3,30,210,1260,6930,36036,180180,875160,4157010,
 19399380,89237148,405623400,1825305300,8143669800,
 36064823400,158685222960,694247850450,
 3022020054900,13095420237900,56517076816200,
 243023430309660,1041528987041400]

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Last modified May 4 02:59 EDT 2024. Contains 372225 sequences. (Running on oeis4.)