Number of n X 3 0..3 arrays with rows and columns in nondecreasing order.

A184123

Number of n X 3 0..3 arrays with rows and columns in nondecreasing order.

Terms

    a(0) =20a(1) =561a(2) =14178a(3) =276427a(4) =4249486a(5) =53817407a(6) =581588614a(7) =5503143135a(8) =46473256070a(9) =355407459056

External references