Number of permutations of 9 indistinguishable copies of 1..n arranged in a circle with exactly 1 local maximum.
A159740
Number of permutations of 9 indistinguishable copies of 1..n arranged in a circle with exactly 1 local maximum.
Terms
- a(0) =18a(1) =270a(2) =3600a(3) =45000a(4) =540000a(5) =6300000a(6) =72000000a(7) =810000000a(8) =9000000000a(9) =99000000000
External references
- oeis: A159740