A024156 - cp's OEIS frontend

A024156 Number of integer-sided triangles with sides a,b,c, a that are obtuse.

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	1
10	0
11	1
12	0
13	2
14	1
15	2
16	2
17	3
18	2
19	4
20	3
21	6
22	3
23	7
24	4
25	8
26	6
27	9
28	7
29	10
30	8
31	12
32	10
33	15
34	11
35	16
36	13
37	18
38	15
39	19
40	17
41	21
42	19
43	25
44	21
45	28
46	22
47	30
48	25
49	32
50	28
51	35
52	31
53	38
54	33
55	41
56	35
57	45
58	38
59	47
60	42
61	51
62	46
63	53
64	50
65	57
66	52
67	61
68	55
69	65
70	58
71	68
72	63
73	74
74	67
75	77
76	71
77	82
78	74
79	86
80	77
81	92
82	82
83	96
84	87

[0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 2, 1, 2, 2, 3, 2, 4, 3, 6, 3, 7, 4, 8, 6, 9, 7, 10, 8, 12, 10, 15, 11, 16, 13, 18, 15, 19, 17, 21, 19, 25, 21, 28, 22, 30, 25, 32, 28, 35, 31, 38, 33, 41, 35, 45, 38, 47, 42, 51, 46, 53, 50, 57, 52, 61, 55, 65, 58, 68, 63, 74, 67, 77, 71, 82, 74, 86, 77, 92, 82, 96, 87]

cp's OEIS Frontend

A024156 Number of integer-sided triangles with sides a,b,c, a that are obtuse.

Table of values

List of values

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	1
10	0
11	1
12	0
13	2
14	1
15	2
16	2
17	3
18	2
19	4
20	3
21	6
22	3
23	7
24	4
25	8
26	6
27	9
28	7
29	10
30	8
31	12
32	10
33	15
34	11
35	16
36	13
37	18
38	15
39	19
40	17
41	21
42	19
43	25
44	21
45	28
46	22
47	30
48	25
49	32
50	28
51	35
52	31
53	38
54	33
55	41
56	35
57	45
58	38
59	47
60	42
61	51
62	46
63	53
64	50
65	57
66	52
67	61
68	55
69	65
70	58
71	68
72	63
73	74
74	67
75	77
76	71
77	82
78	74
79	86
80	77
81	92
82	82
83	96
84	87

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	1
10	0
11	1
12	0
13	2
14	1
15	2
16	2
17	3
18	2
19	4
20	3
21	6
22	3
23	7
24	4
25	8
26	6
27	9
28	7
29	10
30	8
31	12
32	10
33	15
34	11
35	16
36	13
37	18
38	15
39	19
40	17
41	21
42	19
43	25
44	21
45	28
46	22
47	30
48	25
49	32
50	28
51	35
52	31
53	38
54	33
55	41
56	35
57	45
58	38
59	47
60	42
61	51
62	46
63	53
64	50
65	57
66	52
67	61
68	55
69	65
70	58
71	68
72	63
73	74
74	67
75	77
76	71
77	82
78	74
79	86
80	77
81	92
82	82
83	96
84	87

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	1
10	0
11	1
12	0
13	2
14	1
15	2
16	2
17	3
18	2
19	4
20	3
21	6
22	3
23	7
24	4
25	8
26	6
27	9
28	7
29	10
30	8
31	12
32	10
33	15
34	11
35	16
36	13
37	18
38	15
39	19
40	17
41	21
42	19
43	25
44	21
45	28
46	22
47	30
48	25
49	32
50	28
51	35
52	31
53	38
54	33
55	41
56	35
57	45
58	38
59	47
60	42
61	51
62	46
63	53
64	50
65	57
66	52
67	61
68	55
69	65
70	58
71	68
72	63
73	74
74	67
75	77
76	71
77	82
78	74
79	86
80	77
81	92
82	82
83	96
84	87