Number of triangles with integer sides and area = n times perimeter.

Terms

a(0) =5a(1) =18a(2) =45a(3) =45a(4) =52a(5) =139a(6) =80a(7) =89a(8) =184a(9) =145a(10) =103a(11) =312a(12) =96a(13) =225a(14) =379a(15) =169a(16) =116a(17) =498a(18) =123a(19) =328a(20) =560a(21) =280a(22) =134a(23) =592a(24) =228a(25) =271a(26) =452a(27) =510a(28) =134a(29) =1036