334836

Appears in sequences

• Number of trees with n nodes, 3 of which are labeled.at n=9A000269
• Number of positions that are exactly n moves from the starting position in the Hockey Puck puzzle.at n=8A079738
• Number of lattice paths from (0,0) to (n,n) using steps S={(1,0),(0,1),(r,r)|0<r<=2} that never go above the line y=x.at n=9A175934