A073916 - OEIS

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A073916 as a simple table

n	a(n)
1	1
2	3
3	25
4	14
5	14641
6	44
7	24137569
8	70
9	1089
10	405
11	819628286980801
12	160
13	22563490300366186081
14	2752
15	9801
16	462
17	21559177407076402401757871041
18	1044
19	740195513856780056217081017732809
20	1520
21	141376
22	84992

[1,3,25,14,14641,44,24137569,70,1089,405, 819628286980801,160,22563490300366186081,2752, 9801,462,21559177407076402401757871041,1044, 740195513856780056217081017732809,1520,141376, 84992]