Number of lattice paths from {n}^7 to {0}^7 using steps that decrement one component such that for each point (p_1,p_2,...,p_7) we have p_1<=p_2<=...<=p_7.

A227598

Number of lattice paths from {n}^7 to {0}^7 using steps that decrement one component such that for each point (p_1,p_2,...,p_7) we have p_1<=p_2<=...<=p_7.