A270065 Number of tilings of a 5 X n rectangle using monominoes and trominoes of any shape.

1, 4, 140, 3710, 96176, 2501946, 65410388, 1707101599, 44538604036, 1162378878394, 30334909910156, 791636651386694, 20659194865202206, 539139829390310029, 14069828639020139191, 367177676400256677129, 9582168262012437486944, 250064069442551102774366

Offset: 0

Author

Alois P. Heinz, Mar 09 2016

Keywords

• nonn

Links

• Alois P. Heinz, Table of n, a(n) for n = 0..700
• Vaclav Kotesovec, Recurrence (of order 135) and g.f.
• Wikipedia, Tromino

Crossrefs

Column k=5 of A270061.