If 1+2=3, 2+3=16 and 3+4=45 then 4+5=??

Question

If
2+3= 65,
3+4=127,
4+1=45,
2+5=107
then
7+3=?

Answer 1

4+5=96, as series follows the general : a+b=a^2*(b+1)