Palindromic squarefree semiprimes such that the sum of the two prime factors is also a palindrome.

Terms

a(0) =6a(1) =717a(2) =989a(3) =13231a(4) =15251a(5) =15751a(6) =18281a(7) =19291a(8) =31613a(9) =34043a(10) =35653a(11) =37073a(12) =37673a(13) =38383a(14) =38683a(15) =97079a(16) =98789a(17) =99899a(18) =1115111a(19) =1226221a(20) =1794971a(21) =3525253a(22) =3755573a(23) =3782873a(24) =104646401a(25) =114202411a(26) =127888721a(27) =133707331a(28) =134010431a(29) =137181731