Palindromic primes with strictly increasing sum of digits.

Terms

a(0) =2a(1) =3a(2) =5a(3) =7a(4) =181a(5) =191a(6) =373a(7) =383a(8) =727a(9) =757a(10) =787a(11) =797a(12) =17971a(13) =19891a(14) =19991a(15) =76667a(16) =77977a(17) =78887a(18) =79997a(19) =1987891a(20) =1988891a(21) =1998991a(22) =3799973a(23) =3899983a(24) =3998993a(25) =7897987a(26) =7996997a(27) =9888889a(28) =9889889a(29) =9989899