A185952 - OEIS

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A185952 as a simple table

n	a(n)
1	2
2	10
3	130
4	2210
5	64090
6	2371330
7	97224530
8	5152900090
9	314326905490
10	22945864100770
11	2042181904968530
12	198091644781947410
13	20007256122976688410
14	2180790917404459036690
15	246429373666703871145970

[2,10,130,2210,64090,2371330,97224530,5152900090, 314326905490,22945864100770,2042181904968530, 198091644781947410,20007256122976688410, 2180790917404459036690,246429373666703871145970]