Ans: C
Note that the patterns are squares of sides of certain length with one more dot.
Note that the patterns are squares of sides of certain length with one more dot.
$\begin{array}{rcl}
T(1) & = & 3^2 + 1 \\
& = & 10 \\
T(2) & = & 4^2 + 1 \\
& = & 17 \\
T(3) & = & 5^2 + 1\\
& = & 26 \\
& \vdots & \\
T(7) & = & 9^2 + 1 \\
& = & 82
\end{array}$
