A247772 Number of tilings of a 5 X n rectangle using n pentominoes of any but the U shape.
1, 1, 5, 39, 369, 2908, 19185, 137200, 1022915, 7606043, 55699672, 405617356, 2969215193, 21791407596, 159806458014, 1170659384512, 8574740528977, 62830753812692, 460445907547463, 3374031670320652, 24722398637797408, 181148733466258107, 1327366881461315358
Offset: 0
Keywords
Links
- Alois P. Heinz, Table of n, a(n) for n = 0..500
- Wikipedia, Pentomino