# Schröder Number Diagrams

Schröder Number Diagrams

One interpretation of the Schröder numbers is the number of paths from the origin to the point using only steps northeast, southeast, or double steps east, and never passing below the axis. The first few Schröder numbers are .

(0,0)

(2n,0)

x

1,2,6,22,90,394,1806,…