// Cskip array should have MAX_NODE_DEPTH + 1 entries
// last entry is always zero, one prior to it is always 1
// each preceding entry has a value of the next entry..
// .. plus MAX_CHILD_NODES*MAX_ROUTER_NODES^i, where..
// .. i goes from zero for entry preceding value 1 ..
// .. and increments by 1 each time