# A339515 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 7
4 25
5 122
6 728
7 5066
8 40444
9 363618
10 3633894
11 39957372
12 479365980
13 6230659848
14 87218289408
15 1308154099944
16 20929024197336
17 355774686465840
18 6403682340295200
19 121666035674658960
20 2433257870201802720
21 51097347163646718480
22 1124122414761046131120