A161555 - OEIS

A161555 as a simple table

n	a(n)
1	2
2	2
3	2
4	3
5	3
6	3
7	5
8	5
9	7
10	7
11	7
12	7
13	11
14	11
15	13
16	13
17	13
18	17
19	17
20	17
21	17
22	17
23	17
24	17
25	17
26	17
27	17
28	17
29	17
30	17
31	17
32	17
33	17
34	37
35	37
36	37
37	41
38	41
39	43
40	43
41	43
42	43
43	43
44	43
45	43
46	53
47	53
48	53
49	53
50	53
51	53
52	53
53	53
54	53
55	53
56	67
57	67
58	67
59	67

[2,2,2,3,3,3,5,5,7,7,7,7,11,11,13,13,13,17,17,17, 17,17,17,17,17,17,17,17,17,17,17,17,17,37,37,37, 41,41,43,43,43,43,43,43,43,53,53,53,53,53,53,53, 53,53,53,67,67,67,67]

n	a(n)
1	2
2	2
3	2
4	3
5	3
6	3
7	5
8	5
9	7
10	7
11	7
12	7
13	11
14	11
15	13
16	13
17	13
18	17
19	17
20	17
21	17
22	17
23	17
24	17
25	17
26	17
27	17
28	17
29	17
30	17
31	17
32	17
33	17
34	37
35	37
36	37
37	41
38	41
39	43
40	43
41	43
42	43
43	43
44	43
45	43
46	53
47	53
48	53
49	53
50	53
51	53
52	53
53	53
54	53
55	53
56	67
57	67
58	67
59	67

n	a(n)
1	2
2	2
3	2
4	3
5	3
6	3
7	5
8	5
9	7
10	7
11	7
12	7
13	11
14	11
15	13
16	13
17	13
18	17
19	17
20	17
21	17
22	17
23	17
24	17
25	17
26	17
27	17
28	17
29	17
30	17
31	17
32	17
33	17
34	37
35	37
36	37
37	41
38	41
39	43
40	43
41	43
42	43
43	43
44	43
45	43
46	53
47	53
48	53
49	53
50	53
51	53
52	53
53	53
54	53
55	53
56	67
57	67
58	67
59	67

n	a(n)
1	2
2	2
3	2
4	3
5	3
6	3
7	5
8	5
9	7
10	7
11	7
12	7
13	11
14	11
15	13
16	13
17	13
18	17
19	17
20	17
21	17
22	17
23	17
24	17
25	17
26	17
27	17
28	17
29	17
30	17
31	17
32	17
33	17
34	37
35	37
36	37
37	41
38	41
39	43
40	43
41	43
42	43
43	43
44	43
45	43
46	53
47	53
48	53
49	53
50	53
51	53
52	53
53	53
54	53
55	53
56	67
57	67
58	67
59	67