A003313 - OEIS

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A003313 as a simple table

n	a(n)
1	0
2	1
3	2
4	2
5	3
6	3
7	4
8	3
9	4
10	4
11	5
12	4
13	5
14	5
15	5
16	4
17	5
18	5
19	6
20	5
21	6
22	6
23	6
24	5
25	6
26	6
27	6
28	6
29	7
30	6
31	7
32	5
33	6
34	6
35	7
36	6
37	7
38	7
39	7
40	6
41	7
42	7
43	7
44	7
45	7
46	7
47	8
48	6
49	7
50	7
51	7
52	7
53	8
54	7
55	8
56	7
57	8
58	8
59	8
60	7
61	8
62	8
63	8
64	6
65	7
66	7
67	8
68	7
69	8
70	8
71	9
72	7
73	8
74	8
75	8
76	8
77	8
78	8
79	9
80	7
81	8
82	8
83	8
84	8
85	8
86	8
87	9
88	8
89	9
90	8
91	9
92	8
93	9
94	9
95	9
96	7
97	8
98	8
99	8
100	8

[0,1,2,2,3,3,4,3,4,4,5,4,5,5,5,4,5,5,6,5,6,6,6,5, 6,6,6,6,7,6,7,5,6,6,7,6,7,7,7,6,7,7,7,7,7,7,8,6,7, 7,7,7,8,7,8,7,8,8,8,7,8,8,8,6,7,7,8,7,8,8,9,7,8,8, 8,8,8,8,9,7,8,8,8,8,8,8,9,8,9,8,9,8,9,9,9,7,8,8,8, 8]

n	a(n)
1	0
2	1
3	2
4	2
5	3
6	3
7	4
8	3
9	4
10	4
11	5
12	4
13	5
14	5
15	5
16	4
17	5
18	5
19	6
20	5
21	6
22	6
23	6
24	5
25	6
26	6
27	6
28	6
29	7
30	6
31	7
32	5
33	6
34	6
35	7
36	6
37	7
38	7
39	7
40	6
41	7
42	7
43	7
44	7
45	7
46	7
47	8
48	6
49	7
50	7
51	7
52	7
53	8
54	7
55	8
56	7
57	8
58	8
59	8
60	7
61	8
62	8
63	8
64	6
65	7
66	7
67	8
68	7
69	8
70	8
71	9
72	7
73	8
74	8
75	8
76	8
77	8
78	8
79	9
80	7
81	8
82	8
83	8
84	8
85	8
86	8
87	9
88	8
89	9
90	8
91	9
92	8
93	9
94	9
95	9
96	7
97	8
98	8
99	8
100	8

n	a(n)
1	0
2	1
3	2
4	2
5	3
6	3
7	4
8	3
9	4
10	4
11	5
12	4
13	5
14	5
15	5
16	4
17	5
18	5
19	6
20	5
21	6
22	6
23	6
24	5
25	6
26	6
27	6
28	6
29	7
30	6
31	7
32	5
33	6
34	6
35	7
36	6
37	7
38	7
39	7
40	6
41	7
42	7
43	7
44	7
45	7
46	7
47	8
48	6
49	7
50	7
51	7
52	7
53	8
54	7
55	8
56	7
57	8
58	8
59	8
60	7
61	8
62	8
63	8
64	6
65	7
66	7
67	8
68	7
69	8
70	8
71	9
72	7
73	8
74	8
75	8
76	8
77	8
78	8
79	9
80	7
81	8
82	8
83	8
84	8
85	8
86	8
87	9
88	8
89	9
90	8
91	9
92	8
93	9
94	9
95	9
96	7
97	8
98	8
99	8
100	8

n	a(n)
1	0
2	1
3	2
4	2
5	3
6	3
7	4
8	3
9	4
10	4
11	5
12	4
13	5
14	5
15	5
16	4
17	5
18	5
19	6
20	5
21	6
22	6
23	6
24	5
25	6
26	6
27	6
28	6
29	7
30	6
31	7
32	5
33	6
34	6
35	7
36	6
37	7
38	7
39	7
40	6
41	7
42	7
43	7
44	7
45	7
46	7
47	8
48	6
49	7
50	7
51	7
52	7
53	8
54	7
55	8
56	7
57	8
58	8
59	8
60	7
61	8
62	8
63	8
64	6
65	7
66	7
67	8
68	7
69	8
70	8
71	9
72	7
73	8
74	8
75	8
76	8
77	8
78	8
79	9
80	7
81	8
82	8
83	8
84	8
85	8
86	8
87	9
88	8
89	9
90	8
91	9
92	8
93	9
94	9
95	9
96	7
97	8
98	8
99	8
100	8