168652domain: NAppears in sequencesNumber of partitions satisfying cn(0,5) <= cn(1,5) + cn(4,5) + cn(2,5) and cn(0,5) <= cn(1,5) + cn(4,5) + cn(3,5).at n=49A039844Numerator of the average height of a binary search tree on n elements.at n=13A195582