Yes, provided that the request is in a valid format (see section 8 of FOISA). All requests which result in a refusal to release the information requested should be accompanied by a refusal notice, setting out which exemption applies and why. In this case, the exemption cited would be section 25 "Information Otherwise Accessible".
Remember, however, that authorities can choose not to apply particular exemptions, and also have a duty to advise and assist. In this situation, you should consider responding to the request by providing the requester with the information from your publication scheme, along with an accompanying note directing the requester to the scheme where they may be able to obtain similar information in future.