A153666 - OEIS

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A153666 as a simple table

n	a(n)
1	2
2	4
3	16
4	11
5	16799
6	11199
7	5536
8	92694
9	61796
10	41197
11	23242
12	55710
13	137921
14	257825
15	5271294
16	706641581
17	471094387
18	314062925

[2,4,16,11,16799,11199,5536,92694,61796,41197, 23242,55710,137921,257825,5271294,706641581, 471094387,314062925]