Number of (n+1)X7 0..2 arrays with the number of clockwise edge increases in every 2X2 subblock equal to two, and every 2X2 determinant nonzero.

A205996

Number of (n+1)X7 0..2 arrays with the number of clockwise edge increases in every 2X2 subblock equal to two, and every 2X2 determinant nonzero.

Terms

    a(0) =15252a(1) =445352a(2) =13324720a(3) =403768668a(4) =12247835464a(5) =372736115952

External references