Number of permutations of 1..n arranged in a circle with exactly 9 adjacent element pairs in decreasing order.
A151582
Number of permutations of 1..n arranged in a circle with exactly 9 adjacent element pairs in decreasing order.
Terms
- a(0) =0a(1) =10a(2) =11143a(3) =1831644a(4) =132439905a(5) =5925941490a(6) =192648942945
External references
- oeis: A151582