Number of 3 X 8 matrices with elements in 0..n with each row and each column in nondecreasing order. 3,8,n can be permuted, see formula.
A140912
Number of 3 X 8 matrices with elements in 0..n with each row and each column in nondecreasing order. 3,8,n can be permuted, see formula.
Terms
- a(0) =1a(1) =165a(2) =9075a(3) =259545a(4) =4723719a(5) =61408347a(6) =614083470a(7) =4971151900a(8) =33803832920a(9) =198520691512
External references
- oeis: A140912