# A125318 (b-file synthesized from sequence entry)
0 1
1 8
2 44
3 212
4 1156
5 6428
6 36338
7 206942
8 1183164
9 6777860
10 38866134
11 222980282
12 1279588414
13 7343932838
14 42151639560
15 241943513252
16 1388738207756
17 7971319975484
18 45755345035400
19 262636025020328
20 1507534275820126