996336

Appears in sequences

• a(4n+k) = (k+1)*binomial(5n+k,n)/(4n+k+1), k=0..3.at n=30A118968
• a(n) = 3*binomial(5n+2,n)/(4n+3).at n=7A118970
• G.f. A(x) satisfies A(x) = 1 + x*A(x)^3*A(-x)^2.at n=15A143546