7845264903

Appears in sequences

• Number of closed walks of length n along the edges of a tetrahedron based at a vertex.at n=22A054878
• Closed walks of length 2n along the edges of a cube based at a vertex.at n=11A054879
• Binomial transform of (1,-1,4,-16,64,-256,1024,...) = (3*0^n-(-4)^n)/4.at n=22A084567
• a(n) = (2 + (-1)^n + 3^n)/4.at n=22A122983