# A140813 (b-file synthesized from sequence entry) 2 4 3 12 4 24 5 360 6 360 7 2520 8 5040 9 5040 10 5040 11 55440 12 55440 13 3603600 14 10810800 15 10810800 16 21621600 17 367567200 18 367567200 19 6983776800 20 6983776800 21 6983776800 22 6983776800 23 160626866400 24 160626866400 25 1124388064800 26 1124388064800