A006142 Number of certain self-avoiding walks with n steps on square lattice (see reference for precise definition).
0, 0, 0, 0, 0, 1, 0, 1, 7, 17, 30, 49, 124, 321, 761, 1721, 3815
Offset: 4
References
- N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
Links
- W. A. Beyer and M. B. Wells, Lower bound for the connective constant of a self-avoiding walk on a square lattice, J. Combin. Theory, A 13 (1972), 176-182, Table I.
Crossrefs
Cf. A002976.