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A219991
Number of tilings of an 8 X n rectangle using dominoes and right trominoes.
2
1, 1, 258, 7827, 619773, 31411948, 1973546988, 111496884663, 6652506271144, 385840008972355, 22714686725936048, 1326699809920740144, 77815956863006419783, 4553929883329302973354, 266826017253691963185320, 15623876956054896455317089, 915167189151722925761420274
OFFSET
0,3
LINKS
CROSSREFS
Column k=8 of A219987.
Sequence in context: A253636 A271759 A228998 * A168125 A271038 A097734
KEYWORD
nonn
AUTHOR
Alois P. Heinz, Dec 02 2012
STATUS
approved