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

A206220

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

Terms

    a(0) =33386a(1) =5862927a(2) =600064928a(3) =74479700228

External references