A165871 - OEIS

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A165871 as a simple table

n	a(n)
1	1
2	50
3	50
4	2500
5	50
6	2500
7	50
8	125000
9	2500
10	2500
11	50
12	125000
13	50
14	2500
15	2500
16	6250000
17	50
18	125000
19	50
20	125000
21	2500
22	2500
23	50
24	6250000
25	2500
26	2500
27	125000
28	125000
29	50
30	125000
31	50
32	312500000
33	2500
34	2500
35	2500
36	6250000
37	50
38	2500
39	2500

[1,50,50,2500,50,2500,50,125000,2500,2500,50, 125000,50,2500,2500,6250000,50,125000,50,125000, 2500,2500,50,6250000,2500,2500,125000,125000,50, 125000,50,312500000,2500,2500,2500,6250000,50, 2500,2500]