Is there a vault 77 in fallout 3

There are 7 vaults as follows:
Vault 87
Vault 92
Vault 101
Vault 106
Vault 108
and Vault 112

There is no vault 77. but there is a vault 77 suit. it is located in paradice falls next to a holotape. the holotape has a slaver saying it is haunted and wants to burn it because it is the suit of the puppet master that was in the vault with only a crate of puppets for company.