Squares that becomes a prime number when prefixed with a 9.

Terms

a(0) =1369a(1) =2401a(2) =2809a(3) =3481a(4) =5929a(5) =9409a(6) =10201a(7) =14161a(8) =16129a(9) =17689a(10) =25921a(11) =28561a(12) =32761a(13) =41209a(14) =44521a(15) =64009a(16) =94249a(17) =100489a(18) =108241a(19) =116281a(20) =117649a(21) =130321a(22) =137641a(23) =146689a(24) =157609a(25) =170569a(26) =175561a(27) =177241a(28) =196249a(29) =201601