Number of nX4 0..2 arrays with rows and columns in nondecreasing order.

A184132

Number of nX4 0..2 arrays with rows and columns in nondecreasing order.

Terms

    a(0) =15a(1) =356a(2) =10020a(3) =250841a(4) =5136783a(5) =86649029a(6) =1235699769a(7) =15270848022a(8) =166834456961

External references