Central Lah numbers: a(n) = A105278(2*n,n) = A008297(2*n,n).

A187535

Central Lah numbers: a(n) = A105278(2*n,n) = A008297(2*n,n).

Terms

    a(0) =1a(1) =2a(2) =36a(3) =1200a(4) =58800a(5) =3810240a(6) =307359360a(7) =29682132480

External references