# A374647 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 3 4 12 5 20 6 30 7 210 8 336 9 504 10 5040 11 7920 12 11880 13 154440 14 240240 15 360360 16 5765760 17 8910720 18 13366080 19 253955520 20 390700800 21 586051200 22 12893126400 23 19769460480 24 29654190720 25 741354768000 26 1133836704000 27 1700755056000 28 47621141568000 29 72684900288000