40624domain: NAppears in sequencesNumber of (w,x,y,z) with all terms in {1,...,n} and 2*w*x>3*y*z.at n=18A211922Number of (w,x,y,z) with all terms in {1,...,n} and |w-x|=2|x-y|-|y-z|.at n=38A212577Number of rooted planar binary unlabeled trees with n leaves and caterpillar index = 5.at n=13A214205