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A121113 as a simple table

n a(n)
1 0
2 0
3 6
4 60
5 522
6 4452
7 38130
8 329832
9 2884056
10 25476936
11 227145654
12 2041930920
13 18490834362
14 168537705300
15 1545096559812
16 14238592913328
17 131826509242650
18 1225645805016864
19 11438847800351118
20 107128560124123524
21 1006475582377759578
22 9483340466106708180
23 89593844489912910294

[0,0,6,60,522,4452,38130,329832,2884056,25476936,
 227145654,2041930920,18490834362,168537705300,
 1545096559812,14238592913328,131826509242650,
 1225645805016864,11438847800351118,
 107128560124123524,1006475582377759578,
 9483340466106708180,89593844489912910294]

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Last modified April 23 06:04 EDT 2024. Contains 371906 sequences. (Running on oeis4.)