Number of walks of length n along the edges of an icosahedron between two opposite vertices.
A054885
Number of walks of length n along the edges of an icosahedron between two opposite vertices.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =10a(4) =40a(5) =260a(6) =1240a(7) =6510a(8) =32240a(9) =162760a(10) =812240a(11) =4069010a(12) =20337240a(13) =101725260a(14) =508587240a(15) =2543131510a(16) =12715462240a(17) =63578287760a(18) =317890462240
External references
- oeis: A054885