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A174251 Number of tilings of a 7 X n rectangle with n heptominoes of any shape. 5
1, 1, 7, 259, 9525, 270827, 6633399, 158753814, 3825111851, 96608374284, 2446223788303 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,3
LINKS
R. S. Harris, Counting Nonomino Tilings and Other Things of that Ilk, G4G9 Gift Exchange book, 2010.
CROSSREFS
Sequence in context: A232304 A254127 A203968 * A269576 A130741 A003385
KEYWORD
nonn,more
AUTHOR
Bob Harris (me13013(AT)gmail.com), Mar 13 2010
STATUS
approved

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Last modified March 28 16:34 EDT 2024. Contains 371254 sequences. (Running on oeis4.)