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A364640
Number of tilings of a 10 X n rectangle using dominoes and trominoes (of any shape).
2
1, 7, 4832, 2011408, 788413732, 338492165113, 137392239151483, 56812094297072361, 23450223795056965768, 9661365299560395267479, 3986225747511059714872292, 1659381795764172958697150213, 690830705841882281971622500463, 287606286776941725257756705794089
OFFSET
0,2
LINKS
Wikipedia, Tromino
EXAMPLE
a(1) = 7:
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|_| |_| |_| |_| |_| |_| |_| .
CROSSREFS
Column k=10 of A364457.
Sequence in context: A361452 A338250 A103856 * A340292 A095155 A219893
KEYWORD
nonn
AUTHOR
Alois P. Heinz, Jul 30 2023
STATUS
approved