2719028

Appears in sequences

• First differences of A002002.at n=8A035028
• Convolution of A055854 with A011782.at n=11A055855
• Number of horizontal segments in all Schroeder paths of length 2n (a horizontal segment is a maximal string of horizontal steps).at n=9A104550
• Number of paths from (0,0) to the line x = n, each segment given by a vector (1,1), (1,-1), or (2,0), not crossing the x-axis, and including no horizontal segment on the x-axis.at n=19A247630