Number of circular permutations of length n without modular consecutive triples i,i+2,i+4.
A174075
Number of circular permutations of length n without modular consecutive triples i,i+2,i+4.
Terms
- a(0) =1a(1) =6a(2) =18a(3) =93a(4) =600a(5) =4320a(6) =35168a(7) =321630a(8) =3257109a(9) =36199458a(10) =438126986a(11) =5736774869a(12) =80808984725
External references
- oeis: A174075