# A143139 (b-file synthesized from sequence entry)
1 1
2 3
3 25
4 351
5 6901
6 174483
7 5392465
8 196967991
9 8301682141
10 396555037803
11 21171512707225
12 1249311005445231
13 80742309245690821
14 5672134436846492163
15 430345858647623635105
16 35069095795843414698471
17 3054896437732455928549741
18 283283784773408059496473563