# A192431 (b-file synthesized from sequence entry)
0 0
1 1
2 4
3 15
4 52
5 185
6 648
7 2287
8 8040
9 28321
10 99660
11 350879
12 1235036
13 4347705
14 15304208
15 53873695
16 189642192
17 667570433
18 2349942420
19 8272149359
20 29119170180
21 102503781241
22 360828342424
23 1270168882575
24 4471181087032
25 15739215003425