Square numbers in A070552.

Terms

a(0) =9a(1) =25a(2) =121a(3) =361a(4) =841a(5) =3481a(6) =3721a(7) =5041a(8) =6241a(9) =10201a(10) =17161a(11) =19321a(12) =32761a(13) =39601a(14) =73441a(15) =121801a(16) =143641a(17) =167281a(18) =201601a(19) =212521a(20) =271441a(21) =323761a(22) =326041a(23) =398161a(24) =410881a(25) =436921a(26) =546121a(27) =564001a(28) =674041a(29) =776161