Areas of right triangles with coprime integer sides.

Terms

a(0) =6a(1) =30a(2) =60a(3) =84a(4) =180a(5) =210a(6) =330a(7) =504a(8) =546a(9) =630a(10) =840a(11) =924a(12) =990a(13) =1224a(14) =1320a(15) =1386a(16) =1560a(17) =1710a(18) =1716a(19) =2310a(20) =2340a(21) =2574a(22) =2730a(23) =3036a(24) =3570a(25) =3900a(26) =4080a(27) =4290a(28) =4620a(29) =4914