70607384121
domain: N
Appears in sequences
- Number of closed walks of length n along the edges of a tetrahedron based at a vertex.at n=24A054878
- Closed walks of length 2n along the edges of a cube based at a vertex.at n=12A054879
- Binomial transform of (1,-1,4,-16,64,-256,1024,...) = (3*0^n-(-4)^n)/4.at n=24A084567
- a(n) = (2 + (-1)^n + 3^n)/4.at n=24A122983
- a(n) = 3*a(n-1) - a(n-3) + 3*a(n-4), starting with 1, 2, 6, 20.at n=23A132353