-45045

Appears in sequences

• Triangle of coefficients, read by rows, where T(n,k) is the coefficient of x^n*y^k in f(x,y) that satisfies f(x,y) = 1/(1-x) - x^2/(1-x)^3 + xy*f(x,y)^3.at n=49A086632
• Coefficient array of orthogonal polynomials whose moment sequence is the double factorial numbers A001147.at n=32A176231
• a(n) = 3*a(n-1) - 8*a(n-2), with a(0)=0, a(1)=1.at n=12A190962