A006766 Number of 3-dimensional polyominoes with n cells. (Formerly M2005)

0, 0, 0, 2, 11, 77, 499, 3442, 24128, 173428, 1262464, 9307494

Offset

1,4

References

Dan Hoey, Bill Gosper and Richard C. Schroeppel, Discussions in Math-Fun Mailing list, circa Jul 13 1999.

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=1..12.

W. F. Lunnon, Counting multidimensional polyominoes. Computer Journal 18 (1975), no. 4, pp. 366-367.

R. C. Schroeppel, A few mathematical experiments, Experimental Mathematics Workshop, Oakland, California, March 30, 2004.

Crossrefs

A row of A049429. A column of A049430.

Sequence in context: A368794 A110329 A221844 * A120380 A369542 A079266

Adjacent sequences: A006763 A006764 A006765 * A006767 A006768 A006769

Keyword

hard,nonn

Author

N. J. A. Sloane.

Status

approved