A108207 - OEIS

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A108207 as a simple table

n	a(n)
0	0
1	1
2	5
3	48
4	705
5	13908
6	344175
7	10241802
8	356053845
9	14160219384
10	634005387675
11	31558667189910
12	1728752636180625
13	103346454164558580
14	6695045736425959575
15	467206351191513350130
16	34940050653317111866125

[0,1,5,48,705,13908,344175,10241802,356053845, 14160219384,634005387675,31558667189910, 1728752636180625,103346454164558580, 6695045736425959575,467206351191513350130, 34940050653317111866125]