# A260755 (b-file synthesized from sequence entry)
1 1
2 1
3 1
4 2
5 4
6 252
7 2304
8 343712160
9 17361257184
10 817232021393069622912
11 337615438409845853800240
12 1002314950534089781700930298791626826040504
13 4687493998578314511363173974007271386258869456