The width of the lattice of Dyck paths of length 2n ordered by the relation that one Dyck path lies above another one.

A274291

The width of the lattice of Dyck paths of length 2n ordered by the relation that one Dyck path lies above another one.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =2a(4) =3a(5) =7a(6) =17a(7) =44a(8) =118a(9) =338a(10) =1003a(11) =3039a(12) =9466a(13) =30009a(14) =96757a(15) =316429a(16) =1047683a(17) =3511473a(18) =11876457a(19) =40537388a(20) =139490014a(21) =483393651a(22) =1686007017a(23) =5917253784a(24) =20879801881a(25) =74038098051a(26) =263793988890a(27) =943928231920

External references