%I M3095 N1254 #27 Aug 03 2019 17:14:35
%S 1,0,3,22,207,2412,31754,452640,6840774,108088232,1768560270,
%T 29764630632,512705615350,9005206632672,160810554015408,
%U 2912940755956084,53424552150523386
%N Number of 2n-step polygons on cubic lattice.
%D N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).
%D N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
%H N. Clisby, R. Liang, and G. Slade, <a href="http://dx.doi.org/10.1088/1751-8113/40/36/003">Self-avoiding walk enumeration via the lace expansion</a>, J. Phys. A: Math. Theor., 40 (2007), pp. 10973-11017, Table A5.
%H G. S. Rushbrooke and J. Eve, <a href="https://doi.org/10.1063/1.1703777">High-temperature Ising partition function and related noncrossing polygons for the simple cubic lattice</a>, J. Math. Physics, 3 (1962), pp. 185-189.
%Y Cf. A001412.
%K nonn,walk,more
%O 0,3
%A _N. J. A. Sloane_
%E More terms from _R. J. Mathar_, Aug 31 2007