A043552 Least k for which the integers Floor(5k/m) for m=2,3,...,n are distinct.

1, 1, 1, 2, 4, 4, 4, 6, 10, 13, 13, 18, 18, 22, 29, 34, 37, 42, 45, 55, 58, 65, 73, 76, 84, 93, 97, 106, 120, 125, 130, 146, 157, 163, 174, 186, 199, 205, 218, 238, 245, 260, 274, 289, 305, 312, 328, 345, 362, 379, 396, 405, 433, 442