Number of valid brackets in an n-round tournament.

A355519

Number of valid brackets in an n-round tournament.

Terms

    a(0) =1a(1) =2a(2) =5a(3) =19a(4) =123a(5) =1457a(6) =32924a(7) =1452015a(8) =126487061a(9) =21898598245

External references