A126637 - cp's OEIS frontend

A126637 Difference x-y of generator pairs (x,y) {x and y coprime and not both odd, x>y} of primitive Pythagorean triangles, sorted on values x+y (A126611), then on x-y.

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

[1, 1, 3, 1, 3, 5, 1, 5, 7, 1, 3, 5, 7, 9, 1, 3, 5, 7, 9, 11, 1, 7, 11, 13, 1, 3, 5, 7, 9, 11, 13, 15, 1, 3, 5, 7, 9, 11, 13, 15, 17, 1, 5, 11, 13, 17, 19, 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 1, 3, 7, 9, 11, 13, 17, 19, 21, 23, 1, 5, 7, 11]

cp's OEIS Frontend

A126637 Difference x-y of generator pairs (x,y) {x and y coprime and not both odd, x>y} of primitive Pythagorean triangles, sorted on values x+y (A126611), then on x-y.

Table of values

List of values

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

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

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