# A251569 (b-file synthesized from sequence entry) 0 1 1 1 2 3 3 25 4 385 5 8661 6 255211 7 9280573 8 401106945 9 20075281705 10 1141518933811 11 72671265032961 12 5119905952974913 13 395447744211899965 14 33224120086567957275 15 3016468531370564888101 16 294296638636407727046401 17 30704676897459478866984273 18 3411268107193733242307499235