36380

Appears in sequences

• Number of length n+3 0..7 arrays with every four consecutive terms having the sum of some three elements equal to three times the fourth.at n=11A248536
• a(n) = n*(n + 1)*(n + 2)*(n^2 - n + 4)/24.at n=14A256859
• Number of group homomorphisms S_3 -> S_n, where S_n denotes the symmetric group on n letters.at n=7A281097
• Number of semi-lone-child-avoiding locally disjoint rooted trees with n vertices.at n=20A331872