93117024

Appears in sequences

• a(n) = (n + n^2)*(binomial(2*n, n)).at n=11A119579
• a(n) = denominator(Sum_{k=1..n} (2^(k-1) - 1)/k).at n=37A330719
• a(n) = denominator(Sum_{k=1..n} (2^(k-1) - 1)/k).at n=38A330719