# A323551 (b-file synthesized from sequence entry)
1 3
2 15
3 105
4 385
5 5005
6 85085
7 323323
8 7436429
9 30808063
10 955049953
11 35336848261
12 1448810778701
13 5663533044013
14 266186053068611
15 1085220062510491
16 64027983688118969
17 3905707004975257109
18 15393080549020130959
19 1092908718980429298089
20 79782336485571338760497