Given the following function (in pseudo-code), with n as an input parameter and n is a positive

number:

int function f(n)

{

if n <= 3 then return 0

else {

sum=f(n-3)+f(n- 2)+f(n-1)

for i=1 to n do

{

for j=1 to n do

{

sum=sum+i*j

}

return sum

}

}

write a Java program that computes f(1), f(2), f(3), f(4), f(5), and f(6).