-722813

Appears in sequences

• a(n) = Sum_{k=0..n-1} 3^k*B(k)*C(n,k) where B(k) is the k-th Bernoulli number and C(n,k)=binomial(n,k).at n=13A083007
• Numerator of Bernoulli(n, 1/3).at n=13A157799