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A251075 Number of tilings of a 18 X n rectangle using 3n hexominoes of shape I. 3
1, 1, 1, 1, 1, 1, 43, 117, 229, 385, 591, 853, 5789, 17163, 40521, 84211, 160143, 284639, 945352, 2743255, 7017326, 16250983, 34801374, 69959957, 179843441, 479965811, 1238082783, 3015746329, 6925030997, 15065972891, 35869626723, 89673470947, 226122534275 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,7

LINKS

Alois P. Heinz, Table of n, a(n) for n = 0..1000

Wikipedia, Hexomino

CROSSREFS

Column k=6 of A251072.

Cf. A250663.

Sequence in context: A138695 A297412 A282294 * A248018 A262491 A029816

Adjacent sequences:  A251072 A251073 A251074 * A251076 A251077 A251078

KEYWORD

nonn

AUTHOR

Alois P. Heinz, Nov 29 2014

STATUS

approved

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Last modified September 28 10:48 EDT 2021. Contains 347714 sequences. (Running on oeis4.)