A226544 Number of tilings of a 10 X n rectangle using 1 X 1 squares and L-tiles.

1, 1, 89, 1278, 33636, 715072, 16350693, 364647622, 8201909757, 183947396032, 4129523869606, 92675094208964, 2080048909984067, 46684042670495080, 1047776070980376086, 23516183336037445861, 527795545850035568780, 11845801476106616135344

Offset

0,3

Comments

An L-tile is a 2 X 2 square with the upper right 1 X 1 subsquare removed and no rotations are allowed.

Links

Alois P. Heinz, Table of n, a(n) for n = 0..500

Alois P. Heinz, G.f. for A226544

Crossrefs

Column k=10 of A226444.

Sequence in context: A183321 A264253 A219929 * A220566 A301955 A241635

Adjacent sequences: A226541 A226542 A226543 * A226545 A226546 A226547

Keyword

nonn

Author

Alois P. Heinz, Jun 10 2013

Status

approved