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A006766 Number of 3-dimensional polyominoes with n cells.
(Formerly M2005)
2
0, 0, 0, 2, 11, 77, 499, 3442, 24128, 173428, 1262464, 9307494 (list; graph; refs; listen; history; text; internal format)
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: A053481 A110329 A221844 * A120380 A079266 A094569

Adjacent sequences:  A006763 A006764 A006765 * A006767 A006768 A006769

KEYWORD

hard,nonn

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified October 23 09:13 EDT 2017. Contains 293784 sequences.