243536

Appears in sequences

• Configurations of linear chains for a square lattice.at n=12A033155
• G.f. satisfies: A(x) = x + A(x^2/(1-x)^2).at n=16A119685
• 9-step Fibonacci sequence starting with 0,0,0,1,0,0,0,0,0.at n=27A251750