11633440

Appears in sequences

• G.f. A(x) satisfies A(x) = 1 + x*A(x)^4*A(-x)^3.at n=15A143547
• a(0) = 1; a(n) = Sum_{k=0..floor((n-1)/6)} a(6*k) * a(n-1-6*k).at n=45A386380
• a(n) = 4 * binomial(7*n+4,n)/(7*n+4).at n=7A386392