Numbers whose base-6 representation has the same nonzero number of 1's and 4's.

Terms

a(0) =10a(1) =25a(2) =40a(3) =52a(4) =58a(5) =60a(6) =62a(7) =63a(8) =65a(9) =70a(10) =82a(11) =97a(12) =118a(13) =133a(14) =145a(15) =150a(16) =152a(17) =153a(18) =155a(19) =157a(20) =163a(21) =175a(22) =190a(23) =205a(24) =220a(25) =232a(26) =238a(27) =240a(28) =242a(29) =243