Numbers whose base-6 representation has the same number of 0's, 2's and 3's.

Terms

a(0) =1a(1) =4a(2) =5a(3) =7a(4) =10a(5) =11a(6) =25a(7) =28a(8) =29a(9) =31a(10) =34a(11) =35a(12) =43a(13) =46a(14) =47a(15) =61a(16) =64a(17) =65a(18) =67a(19) =70a(20) =71a(21) =75a(22) =90a(23) =110a(24) =120a(25) =151a(26) =154a(27) =155a(28) =169a(29) =172