Numbers of form 3^i*8^j, with i, j >= 0.

Terms

a(0) =1a(1) =3a(2) =8a(3) =9a(4) =24a(5) =27a(6) =64a(7) =72a(8) =81a(9) =192a(10) =216a(11) =243a(12) =512a(13) =576a(14) =648a(15) =729a(16) =1536a(17) =1728a(18) =1944a(19) =2187a(20) =4096a(21) =4608a(22) =5184a(23) =5832a(24) =6561a(25) =12288a(26) =13824a(27) =15552a(28) =17496a(29) =19683