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A364426
Number of order-6 ribbon tilings for a 6 X n strip.
1
1, 2, 6, 24, 120, 720, 2520, 9240, 35490, 142758, 601167, 2648967, 10532752, 42054602, 168941427, 684260967, 2800315185, 11604074418, 47073995851, 190962943230, 775113276195, 3150369602031, 12833577676317, 52456318079954, 213463250487565
OFFSET
1,2
COMMENTS
a(n) is the number of order-6 ribbon tilings of a 6 X n strip. Note that the width of the strip is equal to the order of ribbon tiles.
REFERENCES
Yinsong Chen and Vladislav Kargin, The Number of ribbon tilings for strips, Discrete Applied Mathematics, Volume 340, 15 December 2023, pages 85-103.
LINKS
Yinsong Chen and Vladislav Kargin, The Number of Ribbon Tilings for Strips, arXiv:2307.00767 [math.CO], 2023.
CROSSREFS
Sequence in context: A263751 A263745 A276840 * A178011 A189853 A189857
KEYWORD
nonn
AUTHOR
Yinsong Chen, Aug 14 2023
STATUS
approved