Number of circular permutations of (0,1,...,n-1) with no consecutive triples i,i+d,i+2d for all d>0.
A174082
Number of circular permutations of (0,1,...,n-1) with no consecutive triples i,i+d,i+2d for all d>0.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =5a(4) =18a(5) =91a(6) =544a(7) =3842a(8) =30573a(9) =277532a(10) =2770405a(11) =30591153a(12) =366836571a(13) =4783219673a(14) =66906770461
External references
- oeis: A174082