# A343364 (b-file synthesized from sequence entry)
0 1
1 1
2 7
3 56
4 413
5 3108
6 23163
7 172711
8 1285256
9 9556603
10 70980000
11 526711507
12 3904946864
13 28926003505
14 214095348671
15 1583389916081
16 11701578676851
17 86415267247743
18 637732279701496
19 4703270177738076
20 34664585073280204
21 255332979654402524
22 1879629724498860397
23 13829015594546304600