Numbers of the form (q^2+(q+1)^2)*(r^2+(r+1)^2), q,r >= 1.

Terms

a(0) =25a(1) =65a(2) =125a(3) =169a(4) =205a(5) =305a(6) =325a(7) =425a(8) =533a(9) =565a(10) =625a(11) =725a(12) =793a(13) =905a(14) =1025a(15) =1105a(16) =1325a(17) =1469a(18) =1525a(19) =1565a(20) =1681a(21) =1825a(22) =1885a(23) =2105a(24) =2125a(25) =2353a(26) =2405a(27) =2501a(28) =2725a(29) =2825