A195950 - OEIS

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A195950 as a simple table

n	a(n)
1	1
2	5
3	162
4	17424
5	6756437
6	9790899054
7	53438526965463
8	1095434478598715742
9	84189100478450762470628
10	24264818647445156524051251366
11	26234269948355443957604222160170467

[1,5,162,17424,6756437,9790899054,53438526965463, 1095434478598715742,84189100478450762470628, 24264818647445156524051251366, 26234269948355443957604222160170467]