A008620 - OEIS

A008620 as a simple table

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

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

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

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

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