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A226374
Number of tilings of a 10 X n rectangle using integer-sided square tiles of area > 1.
2
1, 0, 1, 0, 8, 1, 40, 2, 160, 17, 796, 104, 3722, 480, 17398, 2687, 82803, 13994, 391543, 71546, 1856274, 370012, 8811898, 1887331, 41818642, 9587496, 198572128, 48548770, 943058746, 244715696, 4479189932, 1229654538, 21277462741, 6160387914, 101081540520
OFFSET
0,5
FORMULA
See link for g.f.
EXAMPLE
a(7) = 2:
._._._._._._._. ._._._._._._._.
| | | | | |
|___| | | |___|
| | | | | |
|___| | | |___|
| |_________| |_________| |
|___| | | |___|
| | | | | |
|___| | | |___|
| | | | | |
|___|_________| |_________|___|
MAPLE
# see link for Maple program.
CROSSREFS
Column k=10 of A226206.
Sequence in context: A341739 A286919 A286260 * A050401 A333403 A271060
KEYWORD
nonn,easy
AUTHOR
Alois P. Heinz, Jun 05 2013
STATUS
approved