# A355106 (b-file synthesized from sequence entry)
0 1
1 2
2 8
3 60
4 704
5 11640
6 254736
7 7071512
8 241414400
9 9898632864
10 478455967200
11 26853032524912
12 1728192188667072
13 126200480666269984
14 10363161616018802080
15 949530356895864383280
16 96418968027002031636480
17 10785892383962319840160640