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A269958 Number of tilings of an 8 X 3n rectangle using 8n trominoes of any shape. 2
1, 1173, 5271923, 30860212081, 193553900967497, 1235348565576072999, 7918615596845276941783, 50812059004074711375396005, 326133836808482000144440191279, 2093399184722452211913343015136793, 13437387174568575272118729720355720407 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Alois P. Heinz, Table of n, a(n) for n = 0..262

Wikipedia, Tromino

CROSSREFS

Trisection of column k=8 of A233320.

Sequence in context: A302958 A232082 A187725 * A033912 A204763 A204756

Adjacent sequences:  A269955 A269956 A269957 * A269959 A269960 A269961

KEYWORD

nonn

AUTHOR

Alois P. Heinz, Mar 08 2016

STATUS

approved

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Last modified June 16 20:38 EDT 2021. Contains 345070 sequences. (Running on oeis4.)