Number of nonnegative integer n X n matrices with sum of elements equal to n; polynomial symmetric functions of matrix of order n.
A054688
Number of nonnegative integer n X n matrices with sum of elements equal to n; polynomial symmetric functions of matrix of order n.
Terms
- a(0) =1a(1) =1a(2) =10a(3) =165a(4) =3876a(5) =118755a(6) =4496388a(7) =202927725a(8) =10639125640a(9) =635627275767
External references
- oeis: A054688