A236561 - OEIS

A236561 as a simple table

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

[0,0,1,1,2,3,4,5,6,6,6,9,10,11,11,11,12,14,15,16, 17,17,18,21,22,22,22,22,23,26,27,27,29,29,30,31, 32,34,34,35,35,38,38,39,39,41,42,44,45,46,46,46, 47,48,48,51,51,53,54,57,57,57,58,58,59,60,61,62]

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

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

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