# A257589 (b-file synthesized from sequence entry)
0 1
1 9
2 50
3 245
4 1134
5 5082
6 22308
7 96525
8 413270
9 1755182
10 7407036
11 31097794
12 130007500
13 541574100
14 2249204040
15 9316746045
16 38504502630
17 158814867750
18 653887380300
19 2688007311990
20 11034286426020
21 45238127719980
22 185252191371000
23 757818686552850
24 3097059857724924