a(n+1) = a(n) + sum of its digits, with a(1) = 9.

Terms

a(0) =9a(1) =18a(2) =27a(3) =36a(4) =45a(5) =54a(6) =63a(7) =72a(8) =81a(9) =90a(10) =99a(11) =117a(12) =126a(13) =135a(14) =144a(15) =153a(16) =162a(17) =171a(18) =180a(19) =189a(20) =207a(21) =216a(22) =225a(23) =234a(24) =243a(25) =252a(26) =261a(27) =270a(28) =279a(29) =297