Perimeter of more than one Pythagorean triangle.

Terms

a(0) =60a(1) =84a(2) =90a(3) =120a(4) =132a(5) =144a(6) =168a(7) =180a(8) =210a(9) =240a(10) =252a(11) =264a(12) =270a(13) =280a(14) =288a(15) =300a(16) =312a(17) =330a(18) =336a(19) =360a(20) =390a(21) =396a(22) =408a(23) =420a(24) =432a(25) =440a(26) =450a(27) =456a(28) =462a(29) =468