Numbers whose base-4 and base-7 expansions have the same digit sum.

Terms

a(0) =1a(1) =2a(2) =3a(3) =8a(4) =9a(5) =10a(6) =11a(7) =21a(8) =22a(9) =23a(10) =28a(11) =29a(12) =30a(13) =31a(14) =35a(15) =42a(16) =43a(17) =52a(18) =53a(19) =54a(20) =55a(21) =60a(22) =61a(23) =62a(24) =70a(25) =71a(26) =77a(27) =78a(28) =79a(29) =91