266492

Appears in sequences

• Expansion of (2/(3*sqrt(1-4*z)-1+4*z))*((1-sqrt(1-4*z))/(2*z))^k with k=10.at n=7A172067
• Number of length 1+4 0..n arrays with no consecutive five elements summing to more than 2*n.at n=14A241937
• a(n) = Sum_{k=0..n} (-1)^k * binomial(3*n-k+3,n-k).at n=7A390588