371821450

Appears in sequences

• Denominator of Sum_{k=0..n} 1/binomial(n,k).at n=26A046826
• Denominator of Sum_{k=0..n} 1/C(2*n,2*k).at n=13A100513
• Denominator of Sum_{i=1..n} 1/(i*C(2*i,i)).at n=13A112100