# A221098 (b-file synthesized from sequence entry)
0 1
1 1
2 8
3 156
4 5184
5 243280
6 14742240
7 1097403552
8 97012667136
9 9936480419424
10 1157549828855040
11 151193318253405120
12 21890302973632558080
13 3480525852596442818688
14 603034041051994953483264
15 113109668528001746742489600
16 22839699845167989485088522240