A083776 - OEIS

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A083776 as a simple table

n	a(n)
1	2
2	3
3	5
4	3
5	5
6	7
7	3
8	5
9	7
10	31
11	3
12	5
13	7
14	13
15	127
16	3
17	5
18	7
19	11
20	13
21	149
22	3
23	5
24	7
25	11
26	13
27	19
28	12653
29	3
30	5
31	7
32	11
33	13
34	17
35	31
36	92467
37	3
38	5
39	7
40	11
41	13
42	17
43	19
44	37
45	342362509

[2,3,5,3,5,7,3,5,7,31,3,5,7,13,127,3,5,7,11,13, 149,3,5,7,11,13,19,12653,3,5,7,11,13,17,31,92467, 3,5,7,11,13,17,19,37,342362509]