A006574 Number of domino n-tuples. (Formerly M1454)

2, 5, 14, 38, 107

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

Table of n, a(n) for n=1..5.

Index entries for sequences related to dominoes

Crossrefs

Sequence in context: A052985 A052945 A026288 * A053419 A079227 A371606

Adjacent sequences: A006571 A006572 A006573 * A006575 A006576 A006577

Keyword

nonn

Author

N. J. A. Sloane

Status

approved