# A150968 (b-file synthesized from sequence entry)
0 1
1 2
2 9
3 36
4 155
5 711
6 3252
7 14987
8 71034
9 335301
10 1590682
11 7638914
12 36642619
13 176197696
14 853153680
15 4128974864
16 20015103523
17 97433641619
18 474259672053
19 2311057339844
20 11293164676456
21 55188713180901
22 269929241371606
23 1322783339929551
24 6483263066793933
25 31796814951934582
26 156163700094061499