3063096

Appears in sequences

• a(0) = 0, a(1) = 1 and for n >= 2, a(n) = floor(2 * sqrt(a(n-2) * a(n-1))).at n=35A093333
• G.f. A(x) satisfies A(x) = (1 + x / (1 - x*A(x))^2)^2.at n=11A365120