A085078 - OEIS

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A085078 as a simple table

n	a(n)
1	1
2	2
3	6
4	54
5	750
6	11250
7	360150
8	123531450
9	3088286250
10	64854011250
11	77201350992150
12	65389544290351050
13	32637304517036749530
14	2121424793607388719450
15	163349709107768931397650

[1,2,6,54,750,11250,360150,123531450,3088286250, 64854011250,77201350992150,65389544290351050, 32637304517036749530,2121424793607388719450, 163349709107768931397650]