A083228 - OEIS

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A083228 as a simple table

n	a(n)
0	1
1	3
2	21
3	341
4	10923
5	699051
6	89478485
7	22906492245
8	11728124029611
9	12009599006321323
10	24595658764946068821
11	100743818301219097892181
12	825293359523586849932749483
13	13521606402434446949298167524011

[1,3,21,341,10923,699051,89478485,22906492245, 11728124029611,12009599006321323, 24595658764946068821,100743818301219097892181, 825293359523586849932749483, 13521606402434446949298167524011]