MATLAB: Fastest & most effective way to create this matrix:

Question

Hey there, I have been searching for hours for a good solution & not found one yet. I need to create this matrix (6X6):

A =    0 0 0 0 0 0  
   0 0 0 0 0 0 
   0 0 0 0 0 0
     0 0 0 1 2 3
   0 0 0 4 5 6
   0 0 0 7 8 9

It must be in an effective & short way. Thank you if anyone can help with this one.

Answer 1

one way

a =[1   2   3
   4   5   6
   7   8   9];
out = kron([0 0 ; 0 1],a);