%I A001413 M5154 N2238
%S A001413 0,24,264,3312,48240,762096,12673920,218904768,3891176352,70742410800
%N A001413 Number of 2n-step polygons on cubic lattice.
%D A001413 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, 
               Academic Press, 1995 (includes this sequence).
%D A001413 N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 
               (includes this sequence).
%D A001413 M. E. Fisher and M. F. Sykes, Excluded-volume problem and the Ising model 
               of ferromagnetism, Phys. Rev. 114 (1959), 45-58.
%D A001413 B. J. Hiley and M. F. Sykes, Probability of initial ring closure in the 
               restricted random-walk model of a macromolecule, J. Chem. Phys., 
               34 (1961), 1531-1537.
%D A001413 B. D. Hughes, Random Walks and Random Environments, Oxford 1995, vol. 
               1, p. 462.
%D A001413 M. F. Sykes et al., The number of self-avoiding walks on a lattice, J. 
               Phys. A 5 (1972), 661-666.
%Y A001413 Sequence in context: A009175 A000145 A126904 this_sequence A022065 A125412 
               A000915
%Y A001413 Adjacent sequences: A001410 A001411 A001412 this_sequence A001414 A001415 
               A001416
%K A001413 nonn
%O A001413 1,2
%A A001413 N. J. A. Sloane (njas(AT)research.att.com).