# A151212 (b-file synthesized from sequence entry)
0 1
1 3
2 13
3 55
4 249
5 1135
6 5275
7 24727
8 116855
9 555601
10 2654321
11 12732069
12 61274953
13 295727069
14 1430727417
15 6936363189
16 33690805225
17 163906989103
18 798574185487
19 3895818006991
20 19027958776871
21 93035484993511
22 455330249621399
23 2230438627640211
24 10934740863086635
25 53648006249077831
26 263391103222289955