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A270069 Number of tilings of a 9 X n rectangle using monominoes and trominoes of any shape. 2
1, 19, 13413, 5952243, 2626057921, 1162378878394, 517174361985073, 229681994753502100, 101965922336345576219, 45283517791861200639757, 20109634299824273864511862, 8930062817269356408791188106, 3965614916098256915340694883017, 1761030770921730133912679646624228 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Alois P. Heinz, Table of n, a(n) for n = 0..200

Wikipedia, Tromino

CROSSREFS

Column k=9 of A270061.

Sequence in context: A093400 A265169 A174306 * A186165 A198412 A110392

Adjacent sequences:  A270066 A270067 A270068 * A270070 A270071 A270072

KEYWORD

nonn

AUTHOR

Alois P. Heinz, Mar 09 2016

STATUS

approved

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Last modified July 24 11:42 EDT 2021. Contains 346273 sequences. (Running on oeis4.)