Number of permutations of length n containing the minimum number of monotone subsequences of length 5.
A079106
Number of permutations of length n containing the minimum number of monotone subsequences of length 5.
Terms
- a(0) =1a(1) =2a(2) =6a(3) =24a(4) =118a(5) =668a(6) =4124a(7) =26328a(8) =165636a(9) =985032a(10) =5323032a(11) =25038288a(12) =97173648a(13) =288576288a(14) =577152576a(15) =577152576a(16) =2855608848a(17) =2330017568a(18) =710429200
External references
- oeis: A079106