A348704 - cp's OEIS frontend

A348704 a(n) = Sum_{x_1+x_2+ ... +x_n=n, 0 <= x_1<= x_2 <= ... <= x_n <= n} ((n-1)n)!/((n-x_1)! (n-x_2)! * ... * (n-x_n)!).

n	a(n)
0	1
1	1
2	3
3	170
4	1027950
5	1079901406584
6	448687115051986530720
7	89290138377185872821028908288000
8	14759276773881730859717740767606565269685350000
9	2387650794422480788739162652666454048976136433287918499830000000

[1, 1, 3, 170, 1027950, 1079901406584, 448687115051986530720, 89290138377185872821028908288000, 14759276773881730859717740767606565269685350000, 2387650794422480788739162652666454048976136433287918499830000000]

cp's OEIS Frontend

A348704 a(n) = Sum_{x_1+x_2+ ... +x_n=n, 0 <= x_1<= x_2 <= ... <= x_n <= n} ((n-1)n)!/((n-x_1)! (n-x_2)! * ... * (n-x_n)!).

Table of values

List of values

cp's OEIS Frontend

A348704 a(n) = Sum_{x_1+x_2+ ... +x_n=n, 0 <= x_1<= x_2 <= ... <= x_n <= n} ((n-1)*n)!/((n-x_1)! * (n-x_2)! * ... * (n-x_n)!).

Table of values

List of values

A348704 a(n) = Sum_{x_1+x_2+ ... +x_n=n, 0 <= x_1<= x_2 <= ... <= x_n <= n} ((n-1)n)!/((n-x_1)! (n-x_2)! * ... * (n-x_n)!).