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A364504 Number of tilings of an n X n square using dominoes and trominoes (of any shape). 3
1, 0, 2, 30, 1294, 215905, 118624712, 239677657279, 1718701020524054, 43796355965749584514, 3986225747511059714872292, 1291654822694833043891279461342, 1491828507298886778780830278188938433 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,3
LINKS
Wikipedia, Tromino
FORMULA
a(n) = A364457(n,n).
CROSSREFS
Main diagonal of A364457.
Sequence in context: A140174 A246741 A089016 * A262004 A132104 A208093
KEYWORD
nonn,more
AUTHOR
Alois P. Heinz, Jul 26 2023
STATUS
approved

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Last modified July 17 04:55 EDT 2024. Contains 374360 sequences. (Running on oeis4.)