Number of nX4 0..2 arrays with diagonals and rows unimodal and antidiagonals nondecreasing.

A224306

Number of nX4 0..2 arrays with diagonals and rows unimodal and antidiagonals nondecreasing.

Terms

    a(0) =46a(1) =698a(2) =5996a(3) =45453a(4) =345875a(5) =2717759a(6) =22071219a(7) =182843194a(8) =1528645389a(9) =12825738594a(10) =107715455487a(11) =904773390455

External references