577080domain: NAppears in sequencesSequence gives the Poincaré series [or Poincare series] of an ordinal Hodge algebra, or algebra with straightening law, for a ring that the braid group on four strands acts on. It is Cohen-Macaulay.at n=29A156231Triangular array read by rows: A063007 * A007318.at n=31A376467