-789

Appears in sequences

• Riordan array, inverse of (1/(1-x^2), x/((1-x)*(1-x^2))).at n=58A188317
• G.f. A(x) satisfies: A(x) = 1 - x * A(x/(1 - x)) / (1 - x)^5.at n=7A346060
• Triangular array T(n,k), read by rows: coefficients of strong divisibility sequence of polynomials p(1,x) = 1, p(2,x) = 1 + 3*x, p(n,x) = u*p(n-1,x) + v*p(n-2,x) for n >= 3, where u = p(2,x), v = 1 - 3*x - 2*x^2.at n=43A368155