Ordered sides of Pythagorean triangles.

Terms

a(0) =3a(1) =4a(2) =5a(3) =5a(4) =6a(5) =7a(6) =8a(7) =8a(8) =9a(9) =9a(10) =10a(11) =10a(12) =11a(13) =12a(14) =12a(15) =12a(16) =12a(17) =13a(18) =13a(19) =14a(20) =15a(21) =15a(22) =15a(23) =15a(24) =15a(25) =16a(26) =16a(27) =16a(28) =17a(29) =17