Numbers n such that, for some numbers (j,k), j<=k, n is the smallest positive multiple of j (or more) of the first k positive integers.
1, 2, 4, 6, 12, 24, 36, 48, 60, 72, 120, 180, 240, 360, 420, 720, 840, 1260, 1680, 2520
1 seqfan posts
Thu Nov 18 21:05:08 CET 2010 [seqfan] A057641, A094348 and the Riemann Hypothesis