Number of 4Xn arrays containing n copies of 0..4-1 with row sums and column sums nondecreasing.

A267993

Number of 4Xn arrays containing n copies of 0..4-1 with row sums and column sums nondecreasing.

Terms

    a(0) =1a(1) =189a(2) =7477a(3) =425488a(4) =20924732a(5) =1102544770a(6) =53379559302

External references