# A147278 (b-file synthesized from sequence entry)
1 1
2 1
3 1
4 1
5 1
6 5
7 13
8 29
9 79
10 475
11 3011
12 19375
13 140949
14 1504567
15 19831039
16 315319119
17 5871550053
18 136334165017
19 3923421131189
20 139268183686163