T(n,k)=Rolling icosahedron footprints: number of nXk 0..11 arrays starting with 0 where 0..11 label vertices of an icosahedron and every array movement to a horizontal, diagonal or antidiagonal neighbor moves along an icosahedral edge.
A223233
T(n,k)=Rolling icosahedron footprints: number of nXk 0..11 arrays starting with 0 where 0..11 label vertices of an icosahedron and every array movement to a horizontal, diagonal or antidiagonal neighbor moves along an icosahedral edge.
Terms
- a(0) =1a(1) =5a(2) =12a(3) =25a(4) =65a(5) =144a(6) =125a(7) =785a(8) =845a(9) =1728a(10) =625a(11) =7445a(12) =25225a(13) =10985a(14) =20736a(15) =3125a(16) =75665a(17) =492365a(18) =812225a(19) =142805a(20) =248832a(21) =15625a(22) =753005a(23) =11043445a(24) =32837285a(25) =26157625a(26) =1856465a(27) =2985984a(28) =78125a(29) =7540985
External references
- oeis: A223233