A336757 - cp's OEIS frontend

A336757 Number of primitive integer-sided triangles whose sides a < b < c are in arithmetic progression with a perimeter = n.

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

[0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 2, 0, 0, 1, 0, 0, 3, 0, 0, 2, 0, 0, 3, 0, 0, 2, 0, 0, 5, 0, 0, 2, 0, 0, 6, 0, 0, 3, 0, 0, 4, 0, 0, 4, 0, 0, 8, 0, 0, 3, 0, 0, 4, 0, 0, 4, 0, 0, 6, 0, 0, 5, 0, 0, 11, 0, 0, 4]

cp's OEIS Frontend

A336757 Number of primitive integer-sided triangles whose sides a < b < c are in arithmetic progression with a perimeter = n.

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

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

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