A084557 - OEIS

A084557 as a simple table

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

[0,1,2,2,3,3,4,4,4,5,5,5,6,6,6,7,7,7,8,8,8,9,9,9, 10,10,10,10,11,11,11,11,12,12,12,12,13,13,13,13, 14,14,14,14,15,15,15,15,16,16,16,16,17,17,17,17, 18,18,18,18,19,19,19,19,20,20,20,20,21,21,21,21, 22,22,22,22,23]

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

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

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