# A153389 (b-file synthesized from sequence entry)
1 1
2 1
3 3
4 24
5 340
6 6950
7 185332
8 6102096
9 240066324
10 11049803253
11 586427736400
12 35496295553400
13 2429241782433336
14 186578739919860938
15 15978032482994396274
16 1516714259732732880752
17 158739955140174552148004