Number of (n+1)X6 0..3 arrays with rows and columns of determinants of all 2X2 subblocks lexicographically nondecreasing.

A207299

Number of (n+1)X6 0..3 arrays with rows and columns of determinants of all 2X2 subblocks lexicographically nondecreasing.

Terms

    a(0) =456043a(1) =521236935a(2) =380160979265

External references