255409127424domain: NAppears in sequencesDenominator of ((3 * n - 2)/(n^(2 * n - 1) * (2 * n - 1) * 4^(n - 1))).at n=5A067746Total number of rooted labeled trees over all forests on {1,2,...,n} in which one tree has been specially designated.at n=10A225497