A165825 - OEIS

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A165825 as a simple table

n	a(n)
1	1
2	4
3	4
4	16
5	4
6	16
7	4
8	64
9	16
10	16
11	4
12	64
13	4
14	16
15	16
16	256
17	4
18	64
19	4
20	64
21	16
22	16
23	4
24	256
25	16
26	16
27	64
28	64
29	4
30	64
31	4
32	1024
33	16
34	16
35	16
36	256
37	4
38	16
39	16
40	256
41	4
42	64
43	4
44	64
45	64
46	16
47	4
48	1024
49	16
50	64

[1,4,4,16,4,16,4,64,16,16,4,64,4,16,16,256,4,64,4, 64,16,16,4,256,16,16,64,64,4,64,4,1024,16,16,16, 256,4,16,16,256,4,64,4,64,64,16,4,1024,16,64]