128435

Appears in sequences

• Triangle read by rows: T(n,k) is the number of Dyck paths of semilength n having k DUUU's starting at level 1.at n=27A135331
• Number of Dyck paths of semilength n with no DUUU's starting at level 1.at n=12A135337
• a(n) = Sum_{d|n} mu(n/d) * binomial(d,4).at n=43A346761