73264domain: NAppears in sequencesNumber of partitions of floor(7n/2)-1 into n nonnegative integers each no greater than 7.at n=26A001980a(n) = (n-dimensional partitions of 6) + C(n,4) + C(n,3).at n=18A008780a(n) = 4*n*(n^2 + 2)/3.at n=38A217873