Number of (n+1)X3 0..3 arrays with the permanents of 2X2 subblocks nondecreasing rightwards and downwards.

A205175

Number of (n+1)X3 0..3 arrays with the permanents of 2X2 subblocks nondecreasing rightwards and downwards.

Terms

    a(0) =2504a(1) =61320a(2) =1373400a(3) =24657580a(4) =431119786a(5) =6934715463a(6) =111837040063

External references