Number of intervals in the weak (Bruhat) order of the symmetric group S_n that are distributive lattices.
A190291
Number of intervals in the weak (Bruhat) order of the symmetric group S_n that are distributive lattices.
Terms
- a(0) =1a(1) =3a(2) =16a(3) =124a(4) =1262a(5) =15898a(6) =238572a(7) =4152172
External references
- oeis: A190291