Semiprimes whose reversal + 1 is a square.

Terms

a(0) =51a(1) =323a(2) =341a(3) =422a(4) =591a(5) =993a(6) =998a(7) =4227a(8) =4265a(9) =5129a(10) =5534a(11) =5921a(12) =5937a(13) =8049a(14) =8657a(15) =8801a(16) =9953a(17) =32133a(18) =32282a(19) =32471a(20) =32597a(21) =32817a(22) =34091a(23) =34379a(24) =36611a(25) =36863a(26) =38937a(27) =42011a(28) =42243a(29) =42605