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A126611 Sum x+y of generator pairs (x, y) {x and y coprime and not both odd} of primitive Pythagorean triangles, sorted.

Table of values

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

List of values

[3, 5, 5, 7, 7, 7, 9, 9, 9, 11, 11, 11, 11, 11, 13, 13, 13, 13, 13, 13, 15, 15, 15, 15, 17, 17, 17, 17, 17, 17, 17, 17, 19, 19, 19, 19, 19, 19, 19, 19, 19, 21, 21, 21, 21, 21, 21, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 27, 27, 27, 27]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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