Numbers with exactly 2 3's in their base-5 expansion.

Terms

a(0) =18a(1) =43a(2) =68a(3) =78a(4) =83a(5) =88a(6) =90a(7) =91a(8) =92a(9) =94a(10) =98a(11) =118a(12) =143a(13) =168a(14) =193a(15) =203a(16) =208a(17) =213a(18) =215a(19) =216a(20) =217a(21) =219a(22) =223a(23) =243a(24) =268a(25) =293a(26) =318a(27) =328a(28) =333a(29) =338