A066266 - OEIS

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A066266 as a simple table

n	a(n)
1	3
2	13
3	361
4	75601
5	174636001
6	5244319080001
7	2677277333530800001
8	25968760179275365452000001
9	5793445238736255798985527240000001
10	37481813439427687898244906452608585200000001

[3,13,361,75601,174636001,5244319080001, 2677277333530800001,25968760179275365452000001, 5793445238736255798985527240000001, 37481813439427687898244906452608585200000001]