Numbers whose base-6 representation has the same nonzero number of 0's and 5's.

Terms

a(0) =30a(1) =41a(2) =66a(3) =77a(4) =102a(5) =113a(6) =138a(7) =149a(8) =174a(9) =181a(10) =182a(11) =183a(12) =184a(13) =186a(14) =192a(15) =198a(16) =204a(17) =227a(18) =233a(19) =239a(20) =245a(21) =247a(22) =248a(23) =249a(24) =250a(25) =257a(26) =282a(27) =293a(28) =318a(29) =329