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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
OFFSET
0,3
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