Keith numbers together with the numbers from 0 through 9.

Terms

a(0) =0a(1) =1a(2) =2a(3) =3a(4) =4a(5) =5a(6) =6a(7) =7a(8) =8a(9) =9a(10) =14a(11) =19a(12) =28a(13) =47a(14) =61a(15) =75a(16) =197a(17) =742a(18) =1104a(19) =1537a(20) =2208a(21) =2580a(22) =3684a(23) =4788a(24) =7385a(25) =7647a(26) =7909a(27) =31331a(28) =34285a(29) =34348