A254607 Number of tilings of a 7 X n rectangle using polyominoes of shape I.

1, 64, 9866, 2078716, 486248000, 117656540512, 28778500622048, 7063448084710944, 1735575086258267968, 426602245391808219456, 104870171042459607741312, 25780811901305515395438592, 6337913024506813766449064064, 1558108119479642808250383381248, 383044676600298851289615284801792

Offset: 0

Author

Alois P. Heinz, Feb 02 2015

Keywords

• nonn

Comments

A polyomino of shape I is a rectangle of width 1.

Links

• Andrew Howroyd, Table of n, a(n) for n = 0..200
• Wikipedia, Polyomino

Crossrefs

Column k=7 of A254414.

Extensions

Terms a(11) and beyond from Andrew Howroyd, Dec 23 2019