Number of essentially different seating arrangements for n couples around a circular table with 2n seats avoiding spouses being neighbors and avoiding clusters of 3 persons with equal gender.
A114939
Number of essentially different seating arrangements for n couples around a circular table with 2n seats avoiding spouses being neighbors and avoiding clusters of 3 persons with equal gender.
Terms
- a(0) =0a(1) =1a(2) =7a(3) =216a(4) =10956a(5) =803400a(6) =83003040a(7) =11579823360
External references
- oeis: A114939