A002976 Number of certain self-avoiding walks with n steps on square lattice (see reference for precise definition).
0, 1, 0, 2, 0, 5, 9, 21, 42, 76, 174, 396, 888, 2023, 4345, 9921, 22566
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, Letter to N. J. A. Sloane, 1980
- 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.