A120212 - cp's OEIS frontend

A120212 "a" values providing solution x = b in A120211 (i.e., y^2 = b^2(a^2 - b)(b + 1) with a, b legs in primitive Pythagorean triangles).

n	a(n)
1	3
2	5
3	7
4	8
5	9
6	11
7	13
8	17
9	19
10	21
11	23
12	25
13	27
14	29
15	31
16	33
17	35
18	37
19	39
20	41
21	43
22	45
23	47
24	49
25	51
26	53
27	55
28	57
29	59
30	61
31	63
32	65
33	67
34	69
35	71
36	73
37	75

[3, 5, 7, 8, 9, 11, 13, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, 47, 49, 51, 53, 55, 57, 59, 61, 63, 65, 67, 69, 71, 73, 75]