Pattern	$μ_{1111}^{a b c d}$	$μ_{1112}^{a b c d}$ [4]	$μ_{1122}^{a b c d}$ [3]	$μ_{1123}^{a b c d}$ [6]	$μ_{1234}^{a b c d}$
$a b c d$	$\frac{n_{a}}{n}$	$\frac{4 n_{a} (n_{a} - 1)}{n (n - 1)}$	$\frac{3 n_{a} (n_{a} - 1)}{n (n - 1)}$	$\frac{6 n_{a} (n_{a} - 1) (n_{a} - 2)}{n (n - 1) (n - 2)}$	$\frac{n_{a} (n_{a} - 1) (n_{a} - 2) (n_{a} - 3)}{n (n - 1) (n - 2) (n - 3)}$
$a \| b c d$	0	$\frac{n_{a} n_{b}}{n (n - 1)}$	0	$\frac{3 n_{a} n_{b} (n_{b} - 1)}{n (n - 1) (n - 2)}$	$\frac{n_{a} n_{b} (n_{b} - 1) (n_{b} - 2)}{n (n - 1) (n - 2) (n - 3)}$
$a b \| c d$	0	0	$\frac{n_{a} n_{b}}{n (n - 1)}$	$\frac{n_{a} n_{b} (n_{a} + n_{b} - 2)}{n (n - 1) (n - 2)}$	$\frac{n_{a} (n_{a} - 1) n_{b} (n_{b} - 1)}{n (n - 1) (n - 2) (n - 3)}$
$a \| b \| c d$	0	0	0	$\frac{n_{a} n_{b} n_{c}}{n (n - 1) (n - 2)}$	$\frac{n_{a} n_{b} n_{c} (n_{c} - 1)}{n (n - 1) (n - 2) (n - 3)}$
$a \| b \| c \| d$	0	0	0	0	$\frac{n_{a} n_{b} n_{c} n_{d}}{n (n - 1) (n - 2) (n - 3)}$