A043550 Least k for which the integers Floor(3k/m) for m=2,3,...,n are distinct.

1, 1, 2, 2, 3, 7, 9, 10, 14, 19, 24, 27, 30, 37, 44, 52, 61, 70, 75, 86, 97, 102, 114, 127, 140, 147, 169, 177, 192, 209, 226, 234, 252, 271, 290, 310, 331, 352, 363, 386, 409, 432, 444, 469, 494, 520, 547, 574, 602, 631, 660, 675