A174765 - OEIS

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A174765 as a simple table

n	a(n)
1	0
2	39
3	13260
4	4508361
5	1532829480
6	521157514839
7	177192022215780
8	60244766395850361
9	20483043382566906960
10	6964174505306352516039
11	2367798848760777288546300
12	805044644404158971753225961

[0,39,13260,4508361,1532829480,521157514839, 177192022215780,60244766395850361, 20483043382566906960,6964174505306352516039, 2367798848760777288546300, 805044644404158971753225961]