Numbers k such that concatenation of k and its 10's complement is a palindromic prime.

Terms

a(0) =91a(1) =9091a(2) =9271a(3) =9451a(4) =900991a(5) =907291a(6) =914581a(7) =917281a(8) =920971a(9) =931861a(10) =939061a(11) =943651a(12) =954541a(13) =958141a(14) =960931a(15) =972721a(16) =975421a(17) =977221a(18) =978121a(19) =982711a(20) =90027991a(21) =90209791a(22) =90272791a(23) =90372691a(24) =90381691a(25) =90627391a(26) =90745291a(27) =90990091