16Gamma2c

The lattice of normal subgroups with families indicated


It is member $$c$$ of the Hall-Senior family $$\Gamma_2$$ for groups of order $$16$$.

Members
There are two members:

Arithmetic functions with unambiguous values by definition of genus
These are arithmetic functions whose values are unambiguous by the definition of Hall-Senior genus for groups of a given order.

Arithmetic function values for both members
Note that some of these arithmetic function values are the same for both members, but this is true only because of the particular genus.