Numbers that are the sum of the divisors of two distinct coprime squares.

Terms

a(0) =31a(1) =187131a(2) =347529a(3) =658749a(4) =2106853a(5) =3969147a(6) =4657471a(7) =4980801a(8) =6540807a(9) =10185273a(10) =20421219a(11) =25690413a(12) =42827421a(13) =44136183a(14) =51598911a(15) =73854183a(16) =202765017a(17) =299457613a(18) =307464339a(19) =308953281a(20) =314858271a(21) =504081669a(22) =516979281a(23) =600877641a(24) =613602549