6680669domain: NAppears in sequencesT(n,k)=Number of nXk arrays of permutations of 0..n*k-1 with rows nondecreasing modulo 3 and columns nondecreasing modulo 7.at n=30A264818a(n) is the number of 3 X n arrays of permutations of 0..n*3-1 with rows nondecreasing modulo 3 and columns nondecreasing modulo 7.at n=5A264820