{ nodes := 18289, null := 0, collisions := 17232, depth := 4}
{ nodes := 9145, null := 16, collisions := 8616, depth := 4}
50
{ nodes := 17, null := 478, collisions := 0, depth := 2}
5
{ nodes := 1, null := 27, collisions := 0, depth := 1}