A337599 - cp's OEIS frontend

A337599 Number of unordered triples of positive integers summing to n, any two of which have a common divisor > 1.

n	a(n)
0	0
1	0
2	0
3	0
4	0
5	0
6	1
7	0
8	1
9	1
10	2
11	0
12	4
13	0
14	4
15	3
16	5
17	0
18	9
19	0
20	9
21	5
22	10
23	0
24	16
25	2
26	14
27	7
28	17
29	0
30	27
31	1
32	21
33	11
34	24
35	6
36	36
37	1
38	30
39	15
40	37
41	2
42	51
43	1
44	41
45	25
46	44
47	2
48	64
49	5
50	58
51	25
52	57
53	2
54	81
55	13
56	69
57	31
58	70
59	3
60	108
61	5
62	80
63	43
64	85
65	17
66	123
67	5
68	97
69	46
70	120
71	6
72	144
73	6

[0, 0, 0, 0, 0, 0, 1, 0, 1, 1, 2, 0, 4, 0, 4, 3, 5, 0, 9, 0, 9, 5, 10, 0, 16, 2, 14, 7, 17, 0, 27, 1, 21, 11, 24, 6, 36, 1, 30, 15, 37, 2, 51, 1, 41, 25, 44, 2, 64, 5, 58, 25, 57, 2, 81, 13, 69, 31, 70, 3, 108, 5, 80, 43, 85, 17, 123, 5, 97, 46, 120, 6, 144, 6]

cp's OEIS Frontend

A337599 Number of unordered triples of positive integers summing to n, any two of which have a common divisor > 1.

Table of values

List of values

n	a(n)
0	0
1	0
2	0
3	0
4	0
5	0
6	1
7	0
8	1
9	1
10	2
11	0
12	4
13	0
14	4
15	3
16	5
17	0
18	9
19	0
20	9
21	5
22	10
23	0
24	16
25	2
26	14
27	7
28	17
29	0
30	27
31	1
32	21
33	11
34	24
35	6
36	36
37	1
38	30
39	15
40	37
41	2
42	51
43	1
44	41
45	25
46	44
47	2
48	64
49	5
50	58
51	25
52	57
53	2
54	81
55	13
56	69
57	31
58	70
59	3
60	108
61	5
62	80
63	43
64	85
65	17
66	123
67	5
68	97
69	46
70	120
71	6
72	144
73	6

n	a(n)
0	0
1	0
2	0
3	0
4	0
5	0
6	1
7	0
8	1
9	1
10	2
11	0
12	4
13	0
14	4
15	3
16	5
17	0
18	9
19	0
20	9
21	5
22	10
23	0
24	16
25	2
26	14
27	7
28	17
29	0
30	27
31	1
32	21
33	11
34	24
35	6
36	36
37	1
38	30
39	15
40	37
41	2
42	51
43	1
44	41
45	25
46	44
47	2
48	64
49	5
50	58
51	25
52	57
53	2
54	81
55	13
56	69
57	31
58	70
59	3
60	108
61	5
62	80
63	43
64	85
65	17
66	123
67	5
68	97
69	46
70	120
71	6
72	144
73	6

n	a(n)
0	0
1	0
2	0
3	0
4	0
5	0
6	1
7	0
8	1
9	1
10	2
11	0
12	4
13	0
14	4
15	3
16	5
17	0
18	9
19	0
20	9
21	5
22	10
23	0
24	16
25	2
26	14
27	7
28	17
29	0
30	27
31	1
32	21
33	11
34	24
35	6
36	36
37	1
38	30
39	15
40	37
41	2
42	51
43	1
44	41
45	25
46	44
47	2
48	64
49	5
50	58
51	25
52	57
53	2
54	81
55	13
56	69
57	31
58	70
59	3
60	108
61	5
62	80
63	43
64	85
65	17
66	123
67	5
68	97
69	46
70	120
71	6
72	144
73	6