a(n+1) = a(n) + sum of digits in base 7 representation of a(n).

Terms

a(0) =1a(1) =2a(2) =4a(3) =8a(4) =10a(5) =14a(6) =16a(7) =20a(8) =28a(9) =32a(10) =40a(11) =50a(12) =52a(13) =56a(14) =58a(15) =62a(16) =70a(17) =74a(18) =82a(19) =92a(20) =100a(21) =104a(22) =112a(23) =116a(24) =124a(25) =134a(26) =142a(27) =152a(28) =160a(29) =170