A005208 - OEIS

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A005208 as a simple table

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

[0,1,2,3,4,4,5,4,4,5,6,6,7,7,7,5,6,6,7,7,8,8,9,7, 6,7,5,6,7,8,9,6,7,8,9,6,7,8,9,9,10,10,11,10,9,10, 11,8,7,8,9,9,10,7,8,8,9,9,10,10,11,11,10,6,7,8,9, 10,11,11,12,8,9,9,9,10,11,10,11,10]

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

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

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