A152617 - OEIS

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A152617 as a simple table

n	a(n)
1	2
2	6
3	60
4	1140
5	22230
6	778050
7	28787850
8	1237877550
9	82937795850
10	6054459097050
11	802693813972050
12	126022928793611850

[2,6,60,1140,22230,778050,28787850,1237877550, 82937795850,6054459097050,802693813972050, 126022928793611850]