Stairs by Stephanie Appleby:

0,0,4,2,0,0,0,0,0,0,0,0,4,2,2,2,3,0,0,0,0,0,0,0,0,0,0,4,2,0,0,0,0,0,0,0,4,2,2,2,3,0,0,0,0,0,0,10,20,0,10,0,4,2,0,0,0,0,0,0,4,2,2,2,2,0,0,4,2,2,2,2,2,2,2,4,2,2,2,2,2,0,0,0,4,2,2,2,2,2,0,0,0,0,0,0,0,0,0,0,4,2,2,2,2,2,0,0,4,2,2,2,2,2,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,4,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,14,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,4,0,1,0,0,0,0,0,4,2,2,2,2,2,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,4,2,0,0,0,0,0,0,0,0,0,4,2,0,1,0,0,0,0,0,0,0,0,0,0,4,2,2,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,4,2,2,2,0,0,0,0,0,0,4,2,2,2,0,0,1,0,0,0,0,0,0,0,0,4,2,2,2,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,4,2,2,2,2,2,0,0,0,0,4,2,2,2,2,2,0,0,0,0,0,0,0,0,0,4,2,2,2,2,2,2,0,0,0,0,0,0,0,0,0,0,0,0,20,10,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,4,2,2,2,2,2,2,0,0,0,4,2,2,2,2,2,2,2,2,2,2,2,2,2,2,9,6,1,0,2,1,4,1,0,0,0,0,X