# A271388 (b-file synthesized from sequence entry)
0 0
1 1
2 2
3 6
4 22
5 89
6 372
7 1570
8 6644
9 28137
10 119182
11 504854
12 2138586
13 9059185
14 38375312
15 162560418
16 688616968
17 2917028273
18 12356730042
19 52343948422
20 221732523710
21 939274043241
22 3978828696652
23 16854588829826
24 71397184015932
25 302443324893529
26 1281170483590022