"Binary prime squares": squares whose binary expansions, read as decimal expansions, are primes.

Terms

a(0) =841a(1) =1521a(2) =2601a(3) =2809a(4) =4489a(5) =7225a(6) =7569a(7) =11449a(8) =18225a(9) =32761a(10) =35721a(11) =55225a(12) =64009a(13) =88209a(14) =123201a(15) =140625a(16) =143641a(17) =198025a(18) =201601a(19) =243049a(20) =339889a(21) =358801a(22) =375769a(23) =491401a(24) =511225a(25) =525625a(26) =546121a(27) =561001a(28) =591361a(29) =609961