A393460 - OEIS

A393460 as a simple table

n	a(n)
4	2
5	2
6	3
7	2
8	3
9	2
10	3
11	-1
12	5
13	2
14	3
15	2
16	2
17	3
18	2
19	2
20	3
21	5
22	5
23	7
24	7
25	11
26	13
27	11
28	11
29	13
30	13
31	17
32	19
33	2
34	2
35	3
36	2
37	2
38	3
39	2
40	2
41	3
42	5
43	5
44	7
45	7
46	11
47	13
48	11
49	11
50	13
51	13
52	17
53	19
54	17
55	17
56	19
57	19
58	23
59	43
60	23
61	23
62	31
63	29
64	29
65	31
66	29
67	29
68	31
69	31
70	53
71	37
72	37
73	2
74	3
75	2
76	2
77	3
78	2
79	3
80	7
81	2
82	3
83	7
84	5
85	11
86	7
87	11
88	17
89	13

[2,2,3,2,3,2,3,-1,5,2,3,2,2,3,2,2,3,5,5,7,7,11,13, 11,11,13,13,17,19,2,2,3,2,2,3,2,2,3,5,5,7,7,11,13, 11,11,13,13,17,19,17,17,19,19,23,43,23,23,31,29, 29,31,29,29,31,31,53,37,37,2,3,2,2,3,2,3,7,2,3,7, 5,11,7,11,17,13]

n	a(n)
4	2
5	2
6	3
7	2
8	3
9	2
10	3
11	-1
12	5
13	2
14	3
15	2
16	2
17	3
18	2
19	2
20	3
21	5
22	5
23	7
24	7
25	11
26	13
27	11
28	11
29	13
30	13
31	17
32	19
33	2
34	2
35	3
36	2
37	2
38	3
39	2
40	2
41	3
42	5
43	5
44	7
45	7
46	11
47	13
48	11
49	11
50	13
51	13
52	17
53	19
54	17
55	17
56	19
57	19
58	23
59	43
60	23
61	23
62	31
63	29
64	29
65	31
66	29
67	29
68	31
69	31
70	53
71	37
72	37
73	2
74	3
75	2
76	2
77	3
78	2
79	3
80	7
81	2
82	3
83	7
84	5
85	11
86	7
87	11
88	17
89	13

n	a(n)
4	2
5	2
6	3
7	2
8	3
9	2
10	3
11	-1
12	5
13	2
14	3
15	2
16	2
17	3
18	2
19	2
20	3
21	5
22	5
23	7
24	7
25	11
26	13
27	11
28	11
29	13
30	13
31	17
32	19
33	2
34	2
35	3
36	2
37	2
38	3
39	2
40	2
41	3
42	5
43	5
44	7
45	7
46	11
47	13
48	11
49	11
50	13
51	13
52	17
53	19
54	17
55	17
56	19
57	19
58	23
59	43
60	23
61	23
62	31
63	29
64	29
65	31
66	29
67	29
68	31
69	31
70	53
71	37
72	37
73	2
74	3
75	2
76	2
77	3
78	2
79	3
80	7
81	2
82	3
83	7
84	5
85	11
86	7
87	11
88	17
89	13

n	a(n)
4	2
5	2
6	3
7	2
8	3
9	2
10	3
11	-1
12	5
13	2
14	3
15	2
16	2
17	3
18	2
19	2
20	3
21	5
22	5
23	7
24	7
25	11
26	13
27	11
28	11
29	13
30	13
31	17
32	19
33	2
34	2
35	3
36	2
37	2
38	3
39	2
40	2
41	3
42	5
43	5
44	7
45	7
46	11
47	13
48	11
49	11
50	13
51	13
52	17
53	19
54	17
55	17
56	19
57	19
58	23
59	43
60	23
61	23
62	31
63	29
64	29
65	31
66	29
67	29
68	31
69	31
70	53
71	37
72	37
73	2
74	3
75	2
76	2
77	3
78	2
79	3
80	7
81	2
82	3
83	7
84	5
85	11
86	7
87	11
88	17
89	13