Numbers of form 2^i*3^j + (i+j) with i, j >= 0.

Terms

a(0) =1a(1) =3a(2) =4a(3) =6a(4) =8a(5) =11a(6) =15a(7) =20a(8) =21a(9) =28a(10) =30a(11) =37a(12) =40a(13) =53a(14) =58a(15) =70a(16) =77a(17) =85a(18) =102a(19) =113a(20) =135a(21) =150a(22) =167a(23) =199a(24) =222a(25) =248a(26) =264a(27) =295a(28) =330a(29) =392