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A071098 Number of ways to tile 4n X 4n square with n squares removed with dominoes. 0
18, 492804, 22396116645000, 1675204080301481563567504, 205572455982988820421241722535052040992 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

REFERENCES

J. Propp, Enumeration of matchings: problems and progress, pp. 255-291 in L. J. Billera et al., eds, New Perspectives in Algebraic Combinatorics, Cambridge, 1999 (see Problem 10).

LINKS

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

J. Propp, Updated article

J. Propp, Enumeration of matchings: problems and progress, in L. J. Billera et al. (eds.), New Perspectives in Algebraic Combinatorics

CROSSREFS

Sequence in context: A013762 A078352 A215577 * A259164 A013808 A115479

Adjacent sequences:  A071095 A071096 A071097 * A071099 A071100 A071101

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, May 28 2002

STATUS

approved

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Last modified February 20 12:57 EST 2019. Contains 320327 sequences. (Running on oeis4.)