Joints Problem Values

The following is a list of all values found for the joint function $$J(n)$$. All values were found in the thread "Bounds for Small N". For $$J(1)-J(8)$$, the values were found by Th3Probl3mSolv3r; values $$J(9)-J(10)$$ were found by talkon. If you add values, be sure to identify who proved them and where.

Values
$$ J(1)=0 $$

$$J(2)=0$$

$$J(3)=1$$

$$J(4)=1$$

$$J(5)=2$$

$$J(6)=4$$

$$J(8)=6$$

$$J(9)=7$$

$$J(10)=10$$