# A126701 (b-file synthesized from sequence entry)
1 0
2 0
3 1
4 4
5 14
6 56
7 283
8 1738
9 12457
10 102492
11 951651
12 9830851
13 111757480
14 1385739200
15 18604785172
16 268807211509
17 4157797131788
18 68538901559776
19 1199382039260721
20 22203590239217092
21 433511971123048194
22 8902234772796777434
23 191798011804919907012