Number of 2-vexillary permutations in S_n, that, permutations whose Stanley symmetric function has at most 2 terms or at most 2 Edelman-Greene tableaux.
A224318
Number of 2-vexillary permutations in S_n, that, permutations whose Stanley symmetric function has at most 2 terms or at most 2 Edelman-Greene tableaux.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =6a(4) =24a(5) =118a(6) =661a(7) =4011a(8) =25654a(9) =170420a(10) =1165697
External references
- oeis: A224318