-4934

Appears in sequences

• Expansion of chi(x^2) / phi(x) in powers of x where phi(), chi() are Ramanujan theta functions.at n=17A246712
• a(n) = Sum_{k=0..floor(n/3)} (-1)^k * binomial(n-1-2*k,n-3*k) * binomial(2*k,k).at n=19A360314
• G.f. A(x) satisfies A(x) = 1 + x*A(x)/A(-x*A(x)^5)^3.at n=7A384975
• Square array A(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where column k is the expansion of B(x)^k, where B(x) is the g.f. of A384975.at n=43A384978