Lower Pythagorean twins.

Terms

a(0) =24a(1) =54a(2) =210a(3) =330a(4) =480a(5) =540a(6) =720a(7) =750a(8) =1344a(9) =1710a(10) =2160a(11) =8664a(12) =8970a(13) =10080a(14) =10290a(15) =12144a(16) =15600a(17) =18144a(18) =24570a(19) =28560a(20) =30240a(21) =34650a(22) =37044a(23) =37440a(24) =47520a(25) =52020a(26) =59334a(27) =68034a(28) =71604a(29) =73920