Numbers n such that primitive solutions for 1/n^2 = 1/x^2 + 1/y^2 exist.

Terms

a(0) =12a(1) =60a(2) =120a(3) =168a(4) =360a(5) =420a(6) =660a(7) =1008a(8) =1092a(9) =1260a(10) =1680a(11) =1848a(12) =1980a(13) =2448a(14) =2640a(15) =2772a(16) =3120a(17) =3420a(18) =3432a(19) =4620a(20) =4680a(21) =5148a(22) =5460a(23) =6072a(24) =7140a(25) =7800a(26) =8160a(27) =8580a(28) =9240a(29) =9828