162760

Appears in sequences

• Number of closed walks of length n along the edges of an icosahedron based at a vertex.at n=9A054884
• Number of walks of length n along the edges of an icosahedron between two opposite vertices.at n=9A054885
• a(n) = Sum_{k=1..floor(n/2)} k^2 * (n-k)^2.at n=24A337173