For relatively small n:
◭n, a◮= Class a = 0 Class a
◭n, a, b◮ = b Class a
◭n, a, b, c...y, z◮ = z y...c, b Class a
n⎔a = 1 Class [a]
n⎔⎔...(b)...⎔⎔a = b Class [a]
n[⎔]a = Class {a}