A006819 Trails of length n on cubic lattice. (Formerly M4204)

1, 6, 30, 150, 750, 3726, 18438, 90966, 447918, 2201622, 10809006, 52999446, 259668942, 1271054982, 6218232414, 30399142614

Offset

0,2

References

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

Links

Table of n, a(n) for n=0..15.

A. J. Guttmann, Lattice trails II: numerical results, J. Phys. A 22 (1989), 575-588.

Crossrefs

Sequence in context: A001412 A162937 A006818 * A163317 A342807 A163922

Adjacent sequences: A006816 A006817 A006818 * A006820 A006821 A006822

Keyword

nonn,walk

Author

N. J. A. Sloane.

Status

approved