# A087448 (b-file synthesized from sequence entry)
0 1
1 2
2 7
3 26
4 93
5 322
6 1091
7 3642
8 12025
9 39362
10 127935
11 413338
12 1328597
13 4251522
14 13551739
15 43046714
16 136314609
17 430467202
18 1355971703
19 4261625370
20 13366006861
21 41841412802
22 130754415027
23 407953774906
24 1270932914153