711987domain: NAppears in sequencesNumber of 5-ary rooted trees with n nodes and height exactly 5.at n=21A036636a(n) = number of n-lettered words in the alphabet {1, 2, 3} with as many occurrences of the substring (consecutive subword) [1, 1, 2] as of [1, 1, 3].at n=13A211288