# A155217 (b-file synthesized from sequence entry)
1 1
2 2
3 5
4 10
5 39
6 205
7 1026
8 7765
9 81639
10 968094
11 15354634
12 328541791
13 8661897260
14 294910384475
15 13193215967675
16 751461392973699
17 54989669970520419
18 5219343962387133501
19 636712452891464320519
20 99887383227114543133737