a(n) = sum of base-7 digits of a(n-1) + sum of base-7 digits of a(n-2).

Terms

a(0) =0a(1) =1a(2) =1a(3) =2a(4) =3a(5) =5a(6) =8a(7) =7a(8) =3a(9) =4a(10) =7a(11) =5a(12) =6a(13) =11a(14) =11a(15) =10a(16) =9a(17) =7a(18) =4a(19) =5a(20) =9a(21) =8a(22) =5a(23) =7a(24) =6a(25) =7a(26) =7a(27) =2a(28) =3a(29) =5