a(1) = 31; a(n+1) = a(n) + sum of decimal digits of a(n).

Terms

a(0) =31a(1) =35a(2) =43a(3) =50a(4) =55a(5) =65a(6) =76a(7) =89a(8) =106a(9) =113a(10) =118a(11) =128a(12) =139a(13) =152a(14) =160a(15) =167a(16) =181a(17) =191a(18) =202a(19) =206a(20) =214a(21) =221a(22) =226a(23) =236a(24) =247a(25) =260a(26) =268a(27) =284a(28) =298a(29) =317