Number of (n+1) X (1+1) 0..2 arrays with every 2 X 2 subblock having the sum of the absolute values of the edge differences equal to 4.

A233942

Number of (n+1) X (1+1) 0..2 arrays with every 2 X 2 subblock having the sum of the absolute values of the edge differences equal to 4.

Terms

    a(0) =44a(1) =226a(2) =1150a(3) =5874a(4) =29970a(5) =152974a(6) =780718a(7) =3984650a(8) =20336682a(9) =103793974a(10) =529740902a(11) =2703678866a(12) =13798968738a(13) =70426836510a(14) =359442745310

External references