Generating functions for connected embeddings in a lattice. II. Weak embeddings
M F Sykes · Journal of Physics A Mathematical and General · 1986
For pt.I see ibid., vol.19, p.1007-25, 1986. The method of partial generating functions is developed to enumerate connected weak embeddings in a lattice. For the body-centred cubic lattice the number of connected weak embeddings of clusters with up to 14 bonds is derived.