A217772 - OEIS

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A217772 as a simple table

n	a(n)
2	1
3	8
4	113
5	48469
6	1232351
7	1002175798
8	30956114561
9	32956274508457
10	1386101220044940571
11	50017672586399947073
12	2548160990547719392420658
13	3694160975065765801289789930
14	142486973648670437070915061157

[1,8,113,48469,1232351,1002175798,30956114561, 32956274508457,1386101220044940571, 50017672586399947073,2548160990547719392420658, 3694160975065765801289789930, 142486973648670437070915061157]