Number of permutations in S_n containing exactly 3 increasing subsequences of length 4.
A224298
Number of permutations in S_n containing exactly 3 increasing subsequences of length 4.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =10a(6) =196a(7) =2477a(8) =25886a(9) =244233a(10) =2167834a(11) =18510734a(12) =154082218a(13) =1260811144a(14) =10198142484a(15) =81848366557a(16) =653537296202
External references
- oeis: A224298