Code:
Hash(input,depth) :=
Hash(input) if depth==1
Hash(Hash(input)+input,depth-1) otherwise
(where 'Hash' can be any regular hashing function, such as sha256)Hash(input) if depth==1
Hash(Hash(input)+input,depth-1) otherwise
don't write recursive code. its bad. for the stack and people mind.also your code is kind of broken... what does Hash with only one input?