8465184

Appears in sequences

• a(n) = n*binomial(2*n-2, n-1).at n=12A037965
• a(n) = (2n+1)*(2n+2)*(2n+6)*(2n+7).at n=25A069080
• Product of Fibonacci and Catalan numbers: a(n) = A000045(n+1)*A000108(n).at n=11A098614
• Irregular triangle, read by rows, T(n, k) = binomial(2*n, k)*binomial(2*k, k).at n=47A156789
• Row sums of the extended Catalan triangle A189231.at n=22A189911
• Numbers n such that there exists a pair x,y, where x<y, x! = n and y! = n, that makes {x,y,n,n} an amicable multiset.at n=20A273969