76762domain: NAppears in sequencesNumber of Dyck paths such that the area between the x-axis and the path is n.at n=30A143951Number of 0..n arrays x(0..3) of 4 elements without any interior element greater than both neighbors or less than both neighbors.at n=26A200872a(n) = 75*2^n - 38.at n=10A304612