A308439 - OEIS

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A308439 as a simple table

n	a(n)
1	3
2	2
3	7
4	2
5	11
6	2
7	31
8	2
9	3
10	2
11	43
12	2
13	71
14	2
15	211
16	2
17	23
18	2
19	67
20	2
21	3
22	2
23	331
24	2
25	5
26	2
27	463
28	2
29	3
30	2
31	2311
32	2
33	3
34	2
35	79
36	2
37	131
38	2
39	17
40	2
41	3
42	2
43	547
44	2
45	911
46	2
47	2731
48	2
49	7
50	2
51	859
52	2
53	3
54	2
55	7
56	2
57	2003
58	2
59	6007
60	2
61	3
62	2
63	59
64	2
65	5
66	2
67	103
68	2
69	3
70	2
71	7
72	2
73	239

[3,2,7,2,11,2,31,2,3,2,43,2,71,2,211,2,23,2,67,2, 3,2,331,2,5,2,463,2,3,2,2311,2,3,2,79,2,131,2,17, 2,3,2,547,2,911,2,2731,2,7,2,859,2,3,2,7,2,2003,2, 6007,2,3,2,59,2,5,2,103,2,3,2,7,2,239]