13312768

Appears in sequences

• a(n) = (9*n + 11)*binomial(n+10, 10)/11.at n=13A056128
• a(n) = x(n) * 2^((n mod 2 - 1)/2), with x(n)=Sum(x(k)*x(n-k-1):0<=k<n), x(0)=SQRT(2).at n=12A137697