553361016

Appears in sequences

• Number of 5-tuples (p_1, p_2, ..., p_5) of Dyck paths of semilength n, such that each p_i is never below p_{i-1}.at n=7A006151
• Dimensions of certain Lie algebra (see reference for precise definition).at n=12A133348
• Number of discrete implications I:L_n^2-> L_n defined on the finite chain L_n={0,1,...n}, which satisfy the left neutrality principle, i.e., I(n,y)=y for all y in L_n.at n=5A367192