Total number of local maxima in all permutations of 2 indistinguishable copies of 1..n arranged in a circle.
A334780
Total number of local maxima in all permutations of 2 indistinguishable copies of 1..n arranged in a circle.
Terms
- a(0) =1a(1) =8a(2) =168a(3) =6336a(4) =360000a(5) =28728000a(6) =3067243200a(7) =422479411200
External references
- oeis: A334780