Ordered semiperimeters of primitive Pythagorean triangles.

Terms

a(0) =6a(1) =15a(2) =20a(3) =28a(4) =35a(5) =42a(6) =45a(7) =63a(8) =66a(9) =72a(10) =77a(11) =88a(12) =91a(13) =99a(14) =104a(15) =110a(16) =117a(17) =120a(18) =130a(19) =143a(20) =153a(21) =156a(22) =165a(23) =170a(24) =187a(25) =190a(26) =195a(27) =204a(28) =209a(29) =210