Upper Pythagorean twins.

Terms

a(0) =30a(1) =60a(2) =216a(3) =336a(4) =486a(5) =546a(6) =726a(7) =756a(8) =1350a(9) =1716a(10) =2166a(11) =8670a(12) =8976a(13) =10086a(14) =10296a(15) =12150a(16) =15606a(17) =18150a(18) =24576a(19) =28566a(20) =30246a(21) =34656a(22) =37050a(23) =37446a(24) =47526a(25) =52026a(26) =59340a(27) =68040a(28) =71610a(29) =73926