Number of ways to tile a fixed 3 x n square grid with 1 x 1, 2 x 2, and axially-oriented 1 x 2 tiles.

A226348

Number of ways to tile a fixed 3 x n square grid with 1 x 1, 2 x 2, and axially-oriented 1 x 2 tiles.

Terms

    a(0) =1a(1) =12a(2) =39a(3) =233a(4) =1018a(5) =5191a(6) =24471a(7) =119998a(8) =576801a(9) =2800623a(10) =13529080a(11) =65524257a(12) =316934081a(13) =1533990732a(14) =7422176263a(15) =35918097881a(16) =173803358634a(17) =841050066135

External references