# A254633 (b-file synthesized from sequence entry)
0 1
1 16
2 480
3 17920
4 752640
5 34062336
6 1623638016
7 80408739840
8 4100845731840
9 214072431738880
10 11388653368508416
11 615465127495335936
12 33704042696173158400
13 1866685441634205696000
14 104401050057113075712000
15 5889038054986331298201600
16 334693662791723162114457600