A308118 - cp's OEIS frontend

A308118 Number of obtuse integer-sided triangles with perimeter n and squarefree sides.

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

[0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 1, 2, 1, 0, 0, 0, 0, 1, 2, 4, 3, 1, 0, 2, 1, 4, 5, 6, 5, 2, 2, 5, 3, 4, 3, 7, 4, 3, 2, 7, 4, 9, 8, 12, 10, 10, 8, 7, 5, 7, 7, 5, 4, 2, 4, 7, 7, 11, 12, 15, 12, 13, 13, 19, 12, 20, 20, 23, 18, 16, 16, 21, 18, 25, 27, 31]

cp's OEIS Frontend

A308118 Number of obtuse integer-sided triangles with perimeter n and squarefree sides.

Table of values

List of values

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

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

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