1,1

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).

J. L. Martin, The exact enumeration of self-avoiding walks on a lattice, Proc. Camb. Phil. Soc., 58 (1962), 92-101.

Sequence in context: A111556 A135905 A028498 this_sequence A001506 A088815 A036691

Adjacent sequences: A001394 A001395 A001396 this_sequence A001398 A001399 A001400

nonn,walk

N. J. A. Sloane (njas(AT)research.att.com).