A072613 - OEIS

A072613 as a simple table

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	1
7	1
8	1
9	1
10	2
11	2
12	2
13	2
14	3
15	4
16	4
17	4
18	4
19	4
20	4
21	5
22	6
23	6
24	6
25	6
26	7
27	7
28	7
29	7
30	7
31	7
32	7
33	8
34	9
35	10
36	10
37	10
38	11
39	12
40	12
41	12
42	12
43	12
44	12
45	12
46	13
47	13
48	13
49	13
50	13
51	14
52	14
53	14
54	14
55	15
56	15
57	16
58	17
59	17
60	17
61	17
62	18
63	18
64	18
65	19
66	19
67	19
68	19
69	20
70	20
71	20
72	20
73	20
74	21
75	21
76	21
77	22
78	22
79	22
80	22

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

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	1
7	1
8	1
9	1
10	2
11	2
12	2
13	2
14	3
15	4
16	4
17	4
18	4
19	4
20	4
21	5
22	6
23	6
24	6
25	6
26	7
27	7
28	7
29	7
30	7
31	7
32	7
33	8
34	9
35	10
36	10
37	10
38	11
39	12
40	12
41	12
42	12
43	12
44	12
45	12
46	13
47	13
48	13
49	13
50	13
51	14
52	14
53	14
54	14
55	15
56	15
57	16
58	17
59	17
60	17
61	17
62	18
63	18
64	18
65	19
66	19
67	19
68	19
69	20
70	20
71	20
72	20
73	20
74	21
75	21
76	21
77	22
78	22
79	22
80	22

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	1
7	1
8	1
9	1
10	2
11	2
12	2
13	2
14	3
15	4
16	4
17	4
18	4
19	4
20	4
21	5
22	6
23	6
24	6
25	6
26	7
27	7
28	7
29	7
30	7
31	7
32	7
33	8
34	9
35	10
36	10
37	10
38	11
39	12
40	12
41	12
42	12
43	12
44	12
45	12
46	13
47	13
48	13
49	13
50	13
51	14
52	14
53	14
54	14
55	15
56	15
57	16
58	17
59	17
60	17
61	17
62	18
63	18
64	18
65	19
66	19
67	19
68	19
69	20
70	20
71	20
72	20
73	20
74	21
75	21
76	21
77	22
78	22
79	22
80	22

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	1
7	1
8	1
9	1
10	2
11	2
12	2
13	2
14	3
15	4
16	4
17	4
18	4
19	4
20	4
21	5
22	6
23	6
24	6
25	6
26	7
27	7
28	7
29	7
30	7
31	7
32	7
33	8
34	9
35	10
36	10
37	10
38	11
39	12
40	12
41	12
42	12
43	12
44	12
45	12
46	13
47	13
48	13
49	13
50	13
51	14
52	14
53	14
54	14
55	15
56	15
57	16
58	17
59	17
60	17
61	17
62	18
63	18
64	18
65	19
66	19
67	19
68	19
69	20
70	20
71	20
72	20
73	20
74	21
75	21
76	21
77	22
78	22
79	22
80	22