# A245782 (b-file synthesized from sequence entry) 1 1 2 672 3 30240 4 23569920 5 45532800 6 14182439040 7 153003540480 8 403031236608 9 518666803200 10 13661860101120 11 740344994887680 12 796928461056000 13 212517062615531520