A238990 - OEIS

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A238990 as a simple table

n	a(n)
1	3
2	41
3	2365
4	638779
5	860394281
6	5929702056895
7	212231595626785699
8	39651723245559240187169
9	38780926340204177325324747343

[3,41,2365,638779,860394281,5929702056895, 212231595626785699,39651723245559240187169, 38780926340204177325324747343]