A082173 - OEIS

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A082173 as a simple table

n	a(n)
0	1
1	1
2	12
3	155
4	2124
5	30482
6	453432
7	6936799
8	108507180
9	1727970542
10	27924685416
11	456820603086
12	7550600079672
13	125905525750500
14	2115511349837040
15	35782547891727495
16	608787760350045420
17	10411451736723707990

[1,1,12,155,2124,30482,453432,6936799,108507180, 1727970542,27924685416,456820603086,7550600079672, 125905525750500,2115511349837040, 35782547891727495,608787760350045420, 10411451736723707990]