# A251185 (b-file synthesized from sequence entry)
1 1
2 2
3 12
4 120
5 1810
6 37800
7 1036154
8 35906304
9 1529029674
10 78259648920
11 4729511693962
12 332593831890144
13 26886410844369674
14 2472715167660949848
15 256431103539829234410
16 29755101352498831197696
17 3837048614372255780199658
18 546600045766108847708692440
19 85556735070332670228234922442