Ordered perimeters of primitive Pythagorean triangles.

Terms

a(0) =12a(1) =30a(2) =40a(3) =56a(4) =70a(5) =84a(6) =90a(7) =126a(8) =132a(9) =144a(10) =154a(11) =176a(12) =182a(13) =198a(14) =208a(15) =220a(16) =234a(17) =240a(18) =260a(19) =286a(20) =306a(21) =312a(22) =330a(23) =340a(24) =374a(25) =380a(26) =390a(27) =408a(28) =418a(29) =420