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A322499 Number of tilings of a 6 X n rectangle using V (2m+1)-ominoes (m >= 0) in standard orientation. 2
1, 1, 13, 107, 838, 6523, 51420, 396500, 3086898, 24009733, 186735416, 1452320952, 11295996925, 87852065113, 683271518863, 5314139902766, 41330688551925, 321449136734050, 2500069029481412, 19444268928224485, 151227677898412290, 1176172285095334802 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,3
COMMENTS
The shapes of the tiles are:
._.
._. | |
._. | | | |
._. | |_. | |_._. | |_._._.
|_| |___| |_____| |_______| ... .
LINKS
Wikipedia, Polyomino
CROSSREFS
Column k=6 of A322494.
Sequence in context: A132261 A142364 A164301 * A087305 A168117 A244176
KEYWORD
nonn,easy
AUTHOR
Alois P. Heinz, Dec 12 2018
STATUS
approved

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Last modified April 20 15:33 EDT 2024. Contains 371844 sequences. (Running on oeis4.)