# A067211 (b-file synthesized from sequence entry)
1 4
2 16
3 340
4 89520
5 290838284
6 12092687195284
7 6675338514190905402
8 50327836869668591230004816
9 5292118931181847999077738163123240
10 7888144623867099277720906683959732404332016
11 168815361056027801755263418243053345902341535059333028