Rolling icosahedron footprints: number of n X 3 0..11 arrays starting with 0 where 0..11 label vertices of an icosahedron and every array movement to a horizontal, vertical or antidiagonal neighbor moves along an icosahedral edge.
A223181
Rolling icosahedron footprints: number of n X 3 0..11 arrays starting with 0 where 0..11 label vertices of an icosahedron and every array movement to a horizontal, vertical or antidiagonal neighbor moves along an icosahedral edge.
Terms
- a(0) =25a(1) =80a(2) =400a(3) =2080a(4) =10880a(5) =56960a(6) =298240a(7) =1561600a(8) =8176640a(9) =42813440a(10) =224174080a(11) =1173790720a(12) =6146048000a(13) =32181125120a(14) =168502558720a(15) =882290851840
External references
- oeis: A223181