Answer:
Step-by-step explanation:
n²+2 where n is number of small squares forming maximum corner square.
in step 1,n=1
step 2,n=2
step 3,n=3
step 4,n=4
when n=1
number of squares=1²+2=1+2=3
when n=2
total numbers=2^2+2=4+2=6
when n=3
total numbers=3²+2=9+2=11
when n=4
total numbers=4²+2=16+2=18
