A106843 Numbers of form 3^i * prime(j), i>=0, j>0.

2, 3, 5, 6, 7, 9, 11, 13, 15, 17, 18, 19, 21, 23, 27, 29, 31, 33, 37, 39, 41, 43, 45, 47, 51, 53, 54, 57, 59, 61, 63, 67, 69, 71, 73, 79, 81, 83, 87, 89, 93, 97, 99, 101, 103, 107, 109, 111, 113, 117, 123, 127, 129, 131, 135, 137, 139, 141, 149, 151, 153, 157, 159