A370599 - cp's OEIS frontend

A370599 a(n) is the number of distinct triangles with integral side-lengths for which the perimeter 2*n divides the area.

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	0
11	0
12	1
13	0
14	0
15	1
16	0
17	0
18	1
19	0
20	0
21	2
22	0
23	0
24	1
25	0
26	0
27	1
28	0
29	0
30	2
31	0
32	1
33	1
34	1
35	2
36	2
37	0
38	0
39	1
40	1
41	0
42	4
43	0
44	1
45	3
46	0
47	0
48	1
49	0
50	0
51	0
52	0
53	0
54	3
55	1
56	2
57	1
58	0
59	0
60	3
61	0
62	0
63	3
64	2
65	1
66	4
67	0
68	2
69	0
70	3
71	0
72	2
73	0
74	0
75	2
76	2
77	3
78	1
79	0
80	2
81	4
82	1
83	0
84	8
85	1
86	0
87	1

[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 2, 0, 0, 1, 0, 0, 1, 0, 0, 2, 0, 1, 1, 1, 2, 2, 0, 0, 1, 1, 0, 4, 0, 1, 3, 0, 0, 1, 0, 0, 0, 0, 0, 3, 1, 2, 1, 0, 0, 3, 0, 0, 3, 2, 1, 4, 0, 2, 0, 3, 0, 2, 0, 0, 2, 2, 3, 1, 0, 2, 4, 1, 0, 8, 1, 0, 1]

cp's OEIS Frontend

A370599 a(n) is the number of distinct triangles with integral side-lengths for which the perimeter 2*n divides the area.

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	0
10	0
11	0
12	1
13	0
14	0
15	1
16	0
17	0
18	1
19	0
20	0
21	2
22	0
23	0
24	1
25	0
26	0
27	1
28	0
29	0
30	2
31	0
32	1
33	1
34	1
35	2
36	2
37	0
38	0
39	1
40	1
41	0
42	4
43	0
44	1
45	3
46	0
47	0
48	1
49	0
50	0
51	0
52	0
53	0
54	3
55	1
56	2
57	1
58	0
59	0
60	3
61	0
62	0
63	3
64	2
65	1
66	4
67	0
68	2
69	0
70	3
71	0
72	2
73	0
74	0
75	2
76	2
77	3
78	1
79	0
80	2
81	4
82	1
83	0
84	8
85	1
86	0
87	1

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	0
11	0
12	1
13	0
14	0
15	1
16	0
17	0
18	1
19	0
20	0
21	2
22	0
23	0
24	1
25	0
26	0
27	1
28	0
29	0
30	2
31	0
32	1
33	1
34	1
35	2
36	2
37	0
38	0
39	1
40	1
41	0
42	4
43	0
44	1
45	3
46	0
47	0
48	1
49	0
50	0
51	0
52	0
53	0
54	3
55	1
56	2
57	1
58	0
59	0
60	3
61	0
62	0
63	3
64	2
65	1
66	4
67	0
68	2
69	0
70	3
71	0
72	2
73	0
74	0
75	2
76	2
77	3
78	1
79	0
80	2
81	4
82	1
83	0
84	8
85	1
86	0
87	1

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	0
11	0
12	1
13	0
14	0
15	1
16	0
17	0
18	1
19	0
20	0
21	2
22	0
23	0
24	1
25	0
26	0
27	1
28	0
29	0
30	2
31	0
32	1
33	1
34	1
35	2
36	2
37	0
38	0
39	1
40	1
41	0
42	4
43	0
44	1
45	3
46	0
47	0
48	1
49	0
50	0
51	0
52	0
53	0
54	3
55	1
56	2
57	1
58	0
59	0
60	3
61	0
62	0
63	3
64	2
65	1
66	4
67	0
68	2
69	0
70	3
71	0
72	2
73	0
74	0
75	2
76	2
77	3
78	1
79	0
80	2
81	4
82	1
83	0
84	8
85	1
86	0
87	1