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A364428
Number of order-8 ribbon tilings for an 8 X n strip.
1
1, 2, 6, 24, 120, 720, 5040, 40320, 181440, 846720, 4097520, 20560176, 106949304, 576591048, 3220805709, 18634276859, 96125303465, 497468690754, 2585581989807, 13512032605810, 71086366996494, 376964624322607, 2017460369623984, 10909954789102904, 57546051294872504, 303513036994534272
OFFSET
1,2
COMMENTS
a(n) is the number of order-8 ribbon tilings of an 8 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: A319209 A212310 A276842 * A273695 A177279 A173848
KEYWORD
nonn
AUTHOR
Yinsong Chen, Jul 26 2023
STATUS
approved