How many orbitals have the values n_3=4 and l_3=3 ?

Question

How many orbitals have the values n=4, l=3, and ml=-2?

Answer 1

I don't know what n3=4 and l3=3 mean.
Two electrons can have the value of n=4, l =3, ml = -2.

Answer 2

n sub 3 equals 4. l sub 3 equals 3.