Long leg of more than one Pythagorean triangle.

Terms

a(0) =12a(1) =24a(2) =36a(3) =40a(4) =45a(5) =48a(6) =56a(7) =60a(8) =63a(9) =72a(10) =80a(11) =84a(12) =90a(13) =96a(14) =105a(15) =108a(16) =112a(17) =120a(18) =126a(19) =132a(20) =135a(21) =140a(22) =144a(23) =156a(24) =160a(25) =165a(26) =168a(27) =176a(28) =180a(29) =189