Yes, if you fed the output of a SHA256 calculation back into the algorithm repeatedly you would get a pseudo-random stream. I think that is what you intended.

Yes, if you fed the output of a SHA256 calculation back into the algorithm repeatedly you would get a pseudo-random stream. I think that is what you intended. Your original post was not clear on that and I thought you were just taking a value and returning a mutation of it using some unknown "reseed" and "value".