A020911 - OEIS

A020911 as a simple table

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

[1,1,1,2,2,2,3,3,4,4,5,5,5,6,6,7,7,8,8,9,9,9,10, 10,11,11,12,12,12,13,13,14,14,15,15,16,16,16,17, 17,18,18,19,19,19,20,20,21,21,22,22,23,23,23,24, 24,25,25,26,26,26,27,27,28,28,29,29,30,30,30]

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

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

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