A083789 - OEIS

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A083789 as a simple table

n	a(n)
1	1
2	2
3	6
4	9
5	12
6	28
7	30
8	1811
9	1976
10	8384
11	53760
12	243875
13	639336
14	41381633
15	102621357
16	7802708751
17	7802708752
18	178874468632
19	1133934949386

[1,2,6,9,12,28,30,1811,1976,8384,53760,243875, 639336,41381633,102621357,7802708751,7802708752, 178874468632,1133934949386]