Number of permutations of 1..n arranged in a circle with exactly 3 local maxima.
A159711
Number of permutations of 1..n arranged in a circle with exactly 3 local maxima.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =96a(7) =1904a(8) =23040a(9) =221184a(10) =1858560a(11) =14353152a(12) =104742912a(13) =734769152a(14) =5010432000a(15) =33464217600a(16) =220066480128
External references
- oeis: A159711