A247770 Number of tilings of a 5 X n rectangle using n pentominoes of any but the P shape.

1, 1, 3, 16, 135, 944, 4814, 26435, 158761, 978044, 5847896, 34112584, 200686378, 1192024482, 7093151801, 42038865123, 248625856115, 1472077262971, 8724918986240, 51715149361624, 306384777098954, 1814848220902299, 10751681585808618, 63702848673263049

Offset

0,3

Links

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

Wikipedia, Pentomino

Crossrefs

Column k=0 of A247706.

Cf. A174249, A233427.

Sequence in context: A307979 A129043 A182951 * A357088 A277673 A335356

Adjacent sequences: A247767 A247768 A247769 * A247771 A247772 A247773

Keyword

nonn

Author

Alois P. Heinz, Sep 23 2014

Status

approved