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A359022
Number of inequivalent tilings of a 6 X n rectangle using integer-sided square tiles.
9
1, 1, 9, 21, 115, 521, 1494, 15129, 83609, 459957, 2551794, 14150081, 78597739
OFFSET
0,3
CROSSREFS
Column k = 6 of A227690.
Sequences for fixed and free (inequivalent) tilings of m X n rectangles, for 2 <= m <= 10:
Sequence in context: A146681 A269633 A279389 * A222809 A230648 A177125
KEYWORD
nonn,more
AUTHOR
John Mason, Dec 12 2022
STATUS
approved