155796077603domain: NAppears in sequencesNumber of nX7 0..7 arrays with every row and column nondecreasing rightwards and downwards, and the number of instances of each value within one of each other.at n=7A201100Number of nX7 arrays of permutations of 7 copies of 0..n-1 with rows and columns nondecreasing.at n=7A265004