A278617 - OEIS

A278617 as a simple table

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

[0,0,1,2,3,3,4,5,5,6,7,7,8,8,8,9,10,10,10,11,11, 12,13,13,14,14,14,15,15,15,16,17,17,17,18,18,19, 20,20,20,21,21,22,22,22,23,23,23,23,24,24,25,26, 26,27,28,28,29,29,29,29,29,29,29,30,30,31,31,31]

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

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

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