OFFSET
1,1
REFERENCES
N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
LINKS
J. L. Martin, The exact enumeration of self-avoiding walks on a lattice, Proc. Camb. Phil. Soc., 58 (1962), 92-101.
CROSSREFS
KEYWORD
nonn,walk,more
AUTHOR
EXTENSIONS
Edited and extended by Joseph Myers, Jul 21 2013
a(12)-a(13) from Sean A. Irvine, Nov 19 2017
a(14)-a(15) from Bert Dobbelaere, Jan 12 2019
STATUS
approved