# A304787 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 7
4 20
5 67
6 222
7 758
8 2617
9 9189
10 32554
11 116494
12 420046
13 1525221
14 5571065
15 20457808
16 75476447
17 279636977
18 1039965746
19 3880891892
20 14527657602
21 54537434161
22 205270200229
23 774460385687
24 2928429307876
25 11095878177649
26 42122749335654
27 160192845018335
28 610224764470011