A156685 - cp's OEIS frontend

A156685 Number of primitive Pythagorean triples A^2 + B^2 = C^2 with 0 < A < B < C and gcd(A,B)=1 that have a hypotenuse C that is less than or equal to n.

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

[0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 11, 11, 11, 11, 11, 11, 11, 11, 12, 12, 12]

cp's OEIS Frontend

A156685 Number of primitive Pythagorean triples A^2 + B^2 = C^2 with 0 < A < B < C and gcd(A,B)=1 that have a hypotenuse C that is less than or equal to n.

Table of values

List of values

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

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

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