Number of (n+1)X2 0..2 arrays with every 2X2 subblock determinant equal to some horizontal or vertical neighbor 2X2 subblock determinant.

A186211

Number of (n+1)X2 0..2 arrays with every 2X2 subblock determinant equal to some horizontal or vertical neighbor 2X2 subblock determinant.

Terms

    a(0) =0a(1) =175a(2) =609a(3) =3593a(4) =15055a(5) =76263a(6) =353985a(7) =1729733a(8) =8225815a(9) =39664199a(10) =189800057a(11) =911926009a(12) =4372168391a(13) =20986330867a(14) =100672272185a(15) =483086490365

External references