517184

Appears in sequences

• Expansion of (1-2*x-x^2)/((1-2*x)*(1-2*x+2*x^2)).at n=14A038508
• G.f. A(x) satisfies 1/x = Sum_{n=-oo..+oo} A(x)^(3*n) * (A(x)^n - 1)^(2*n).at n=8A378574