A364617 - OEIS

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A364617

Number of tilings of a 7 X n rectangle using dominoes and trominoes (of any shape).

2

1, 3, 280, 17300, 1014847, 64589501, 3899306587, 239677657279, 14838250606222, 917767233766444, 56812094297072361, 3515556491898051237, 217564118890672344141, 13464237427858452248381, 833237119780106867168604, 51565577787288901875727255

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,2

LINKS

Alois P. Heinz, Table of n, a(n) for n = 0..558

Wikipedia, Domino (mathematics)

Wikipedia, Tromino

EXAMPLE

a(1) = 3:

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CROSSREFS

Column k=7 of A364457.

Sequence in context: A051365 A003706 A068250 * A263884 A096126 A057599

Adjacent sequences: A364614 A364615 A364616 * A364618 A364619 A364620

KEYWORD

nonn

AUTHOR

Alois P. Heinz, Jul 29 2023

STATUS

approved