A026229 n-th number k such that t(k) = s(k) + 2, where s = A026142, t = A026166.

2, 6, 12, 18, 21, 30, 36, 39, 48, 54, 57, 63, 66, 75, 84, 90, 93, 102, 108, 111, 117, 120, 129, 138, 144, 147, 156, 162, 165, 171, 174, 183, 189, 192, 198, 201, 210, 219, 225, 228, 237, 246, 252, 255, 264, 270, 273, 279, 282, 291