Determine the outputy$($n$),1<=$ n $<=15$ for the following difference equation using a

MATLAB function which accepts n as the input.

y$($n$)+$

$$ y$($n $1)+$

$$ y$($n $2)=$ u$($n $1)$; y$(0)=1,$ y$(1)=6$

where the input u$($n$)=($

$)$n$,$ n $>=0.($Be careful about the indices, because MATLAB starts a vector

with the index of $1.)$