A119552 - OEIS

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A119552 as a simple table

n	a(n)
0	1
1	2
2	66
3	34220
4	250654530
5	26255517781752
6	40219012695854521452
7	915602638690858051785326904
8	313119156483427472599890586326722370
9	1620758891081732168210880572699959520551984700

[1,2,66,34220,250654530,26255517781752, 40219012695854521452,915602638690858051785326904, 313119156483427472599890586326722370, 1620758891081732168210880572699959520551984700]