A120958 - OEIS

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A120958 as a simple table

n	a(n)
0	1
1	1
2	2
3	12
4	164
5	3780
6	128220
7	5962180
8	363377640
9	28109659104
10	2692076369460
11	312824482316588
12	43373419550214360
13	7074801917270302072
14	1341285553197404432856
15	292488135377674745120280

[1,1,2,12,164,3780,128220,5962180,363377640, 28109659104,2692076369460,312824482316588, 43373419550214360,7074801917270302072, 1341285553197404432856,292488135377674745120280]