A199146 - OEIS

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A199146 as a simple table

n	a(n)
1	3
2	393
3	42420
4	6235011
5	839006010
6	117380324984
7	16158623337745
8	2239304268913257
9	309471298054332806
10	42818034223579225138
11	5921413251810033475103
12	819050117505774849777870

[3,393,42420,6235011,839006010,117380324984, 16158623337745,2239304268913257, 309471298054332806,42818034223579225138, 5921413251810033475103,819050117505774849777870]