Base-5 Keith numbers.

Terms

a(0) =5a(1) =9a(2) =10a(3) =11a(4) =13a(5) =15a(6) =20a(7) =22a(8) =31a(9) =40a(10) =43a(11) =53a(12) =62a(13) =71a(14) =84a(15) =93a(16) =124a(17) =154a(18) =221a(19) =483a(20) =3044a(21) =18748a(22) =125973a(23) =232085a(24) =1705260a(25) =2091605a(26) =5616236a(27) =8067806a(28) =8849508a(29) =58944155