Numbers whose base-11 representation has the same nonzero number of 4's and 6's.

Terms

a(0) =50a(1) =70a(2) =171a(3) =191a(4) =292a(5) =312a(6) =413a(7) =433a(8) =490a(9) =501a(10) =512a(11) =523a(12) =545a(13) =550a(14) =551a(15) =552a(16) =553a(17) =555a(18) =557a(19) =558a(20) =559a(21) =560a(22) =567a(23) =578a(24) =589a(25) =600a(26) =655a(27) =675a(28) =730a(29) =741