# A293618 (b-file synthesized from sequence entry) 1 24 2 360 3 432 4 1344 5 2016 6 19440 7 45360 8 68544 9 714240 10 864000 11 1468800 12 1571328 13 1900800 14 2391120 15 2888704 16 3057600 17 4586400 18 5241600 19 103194000