A026488 a(n) = least positive integer > a(n-1) and not a(i)*a(j)-a(k) for 1<=i<=j<=k<=n.

1, 3, 4, 5, 9, 13, 17, 21, 25, 29, 33, 37, 41, 45, 49, 53, 57, 61, 65, 69, 73, 77, 81, 85, 89, 93, 97, 101, 105, 109