2032316

Appears in sequences

• a(n) = n*binomial(2*n-2, n-1).at n=11A037965
• a(n) = C(n)*(12n+1) where C(n) = Catalan numbers (A000108).at n=10A050491
• Row sums of the extended Catalan triangle A189231.at n=20A189911