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A006574 Number of domino n-tuples.
(Formerly M1454) 		0
2, 5, 14, 38, 107 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

REFERENCES

Problem #139, An Enumeration Problem" by David L. Silverman, J. Rec. Math., 8 (1976), 323-327.

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

LINKS

Index entries for sequences related to dominoes

CROSSREFS

Sequence in context: A052945 A026288 A047086 * A053419 A079227 A148314

Adjacent sequences:  A006571 A006572 A006573 * A006575 A006576 A006577

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified February 17 14:50 EST 2012. Contains 206050 sequences.