Numbers k such that the largest power of 3 dividing k equals 3^omega(k).

Terms

a(0) =1a(1) =3a(2) =18a(3) =36a(4) =45a(5) =63a(6) =72a(7) =99a(8) =117a(9) =144a(10) =153a(11) =171a(12) =207a(13) =225a(14) =261a(15) =270a(16) =279a(17) =288a(18) =333a(19) =369a(20) =378a(21) =387a(22) =423a(23) =441a(24) =477a(25) =531a(26) =540a(27) =549a(28) =576a(29) =594