# A219261 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 9
4 33
5 124
6 503
7 2089
8 8960
9 39142
10 173978
11 783347
12 3567123
13 16395199
14 75966835
15 354447193
16 1663921966
17 7853325055
18 37244059607
19 177388171005
20 848148206917
21 4069483589180
22 19588001935380
23 94559416543623
24 457697632011720
25 2220852281129195
26 10800560004895426