Lets say E(code{K}) -> encoded{N}

is a perfect encoding

such that if we take the multi-dimentional geo-universe <U> of the encoded realm

and model multi-dimentional spheres that represent inside them

the values that can be corrected back to the original correct valid encoded word

then these spheres fill that entire <U> exactly without empty "spaces" (when we can't correct them)

what is the formula for D in such a case?