The value of the following sum of terms $$\frac{5}{2^2 \cdot 3^2}+\frac{7}{3^2 \cdot 4^2}+\frac{9}{4^2 \cdot 5^2}+\frac{11}{5^2 \cdot 6^2}+\frac{13}{6^2 \cdot 7^2}+\frac{15}{7^2 \cdot 8^2}$$

A

$$\frac {1}{64}$$

B

$$\frac {15}{64}$$

C

$$\frac {15}{16}$$

D

$$\frac {7}{64}$$