Number of nX3 0..2 arrays with diagonals and antidiagonals unimodal and rows nondecreasing.

A224348

Number of nX3 0..2 arrays with diagonals and antidiagonals unimodal and rows nondecreasing.

Terms

    a(0) =10a(1) =100a(2) =788a(3) =5880a(4) =45064a(5) =349280a(6) =2710892a(7) =21021916a(8) =163012744a(9) =1264202660a(10) =9804721360a(11) =76042111360a(12) =589756075600

External references