A071940 - OEIS

A071940 as a simple table

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

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

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

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

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