A322499 Number of tilings of a 6 X n rectangle using V (2m+1)-ominoes (m >= 0) in standard orientation.

1, 1, 13, 107, 838, 6523, 51420, 396500, 3086898, 24009733, 186735416, 1452320952, 11295996925, 87852065113, 683271518863, 5314139902766, 41330688551925, 321449136734050, 2500069029481412, 19444268928224485, 151227677898412290, 1176172285095334802

Offset: 0

Author

Alois P. Heinz, Dec 12 2018

Keywords

• nonn
• easy

Comments

The shapes of the tiles are:

._.

._. | |

._. | | | |

.. | |. | |.. | |.._.

|| |__| |___| |_____| ... .

Links

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

Crossrefs

Column k=6 of A322494.