Zeroless palindromes with digit sum 9.

Terms

a(0) =9a(1) =171a(2) =252a(3) =333a(4) =414a(5) =11511a(6) =12321a(7) =13131a(8) =21312a(9) =22122a(10) =31113a(11) =1113111a(12) =1121211a(13) =1211121a(14) =2111112a(15) =111111111