Number of (n+1)X6 0..2 arrays with the number of clockwise edge increases in every 2X2 subblock equal to one, and every 2X2 determinant nonzero.

A206007

Number of (n+1)X6 0..2 arrays with the number of clockwise edge increases in every 2X2 subblock equal to one, and every 2X2 determinant nonzero.

Terms

    a(0) =2136a(1) =12304a(2) =33572a(3) =211824a(4) =566288a(5) =3844878a(6) =10015204a(7) =72882376a(8) =184281412a(9) =1429092252a(10) =3503416892a(11) =28746962046a(12) =68400079832a(13) =589318256362

External references