A322502 Number of tilings of a 9 X n rectangle using V (2m+1)-ominoes (m >= 0) in standard orientation.

1, 1, 55, 1500, 38097, 957006, 24009733, 600923375, 15029968375, 376116199534, 9394097589045, 234816663728554, 5869407851857410, 146709570371173411, 3667093829512515427, 91661210468678400305, 2291126428942263984999, 57268064504720859650768

Offset: 0

Author

Alois P. Heinz, Dec 12 2018

Keywords

• nonn

Comments

The shapes of the tiles are:

._.

._. | |

._. | | | |

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

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

Links

• Alois P. Heinz, Table of n, a(n) for n = 0..300
• Wikipedia, Polyomino

Crossrefs

Column k=9 of A322494.