A285872 - OEIS

A285872 as a simple table

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

[0,1,2,3,4,3,4,5,6,7,8,7,8,9,10,11,12,11,12,13,14, 15,16,15,16,17,18,19,20,19,20,21,22,23,24,23,24, 25,26,27,28,27,28,29,30,31,32,31,32,33,34,35,36, 35,36,37,38,39,40,39,40,41,42,43,44,43,44,45]

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

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

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