# A114310 (b-file synthesized from sequence entry)
1 1
2 1
3 6
4 108
5 2640
6 84600
7 3613680
8 203071680
9 14629870080
10 1316802614400
11 144849884256000
12 19120208432371200
13 2982752889071155200
14 542861032044198067200
15 114000816839126241024000
16 27360196043430269859840000
17 7441973323852870393823232000
18 2277243837099794643157389312000