# A151217 (b-file synthesized from sequence entry)
0 1
1 3
2 13
3 55
4 261
5 1191
6 5823
7 27455
8 135735
9 651283
10 3235979
11 15691615
12 78165883
13 381665709
14 1903940151
15 9341340523
16 46638349691
17 229624827839
18 1147029010409
19 5662304713031
20 28293580890365
21 139955523546383
22 699478268799055
23 3465563637240303
24 17322748565123965
25 85936423588182389