A026502 a(n) = least positive integer > a(n-1) and not a(j)*a(k) + a(k)*a(i) + a(i)*a(j) for 1<=i<=j<=k<=n.

1, 2, 3, 4, 6, 10, 17, 18, 22, 23, 25, 29, 30, 31, 38, 39, 41, 42, 46, 49, 50, 52, 55, 57, 58, 62, 65, 66, 67, 70