A055377 - OEIS

A055377 as a simple table

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

[2,2,3,3,3,3,5,5,5,5,7,7,7,7,7,7,7,7,11,11,11,11, 13,13,13,13,13,13,13,13,17,17,17,17,19,19,19,19, 19,19,19,19,23,23,23,23,23,23,23,23,23,23,23,23, 29,29,29,29,31,31,31,31,31,31,31,31,31,31,31,31, 37,37,37,37,37]

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

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

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