I really have no idea what I'm doing here, but I know what I'm trying to do.
The underlying assumption is that the mother's genes will always take dominance.
Father Mother EE HH EH HE EE EE EH Eh Ee HH HE HH Hh He EH Eh eH EH EH HE hE He HE HE
EH=Half-Elf with Dominant Elven Gene (from mother)
HE=Half-Elf with Dominant Human Gene (from mother)
Eh=3/4-Elf+1/4-Human (Dominant Elven Gene)
Ee=3/4-Elf+1/4-Human (Recessive Human Gene)
eH=1/4-Elf+3/4-Human (Recessive Human Gene)
He=1/4-Elf+3/4-Human (Dominant Human Gene)
Hh=1/4-Elf+3/4-Human (Recessive Elven Gene)