Number of ways n married couples can sit in a row without any spouses next to each other.
A007060
Number of ways n married couples can sit in a row without any spouses next to each other.
Terms
- a(0) =1a(1) =0a(2) =8a(3) =240a(4) =13824a(5) =1263360a(6) =168422400a(7) =30865121280
External references
- oeis: A007060