# A026943 (b-file synthesized from sequence entry)
0 1
1 3
2 11
3 38
4 129
5 429
6 1407
7 4563
8 14669
9 46823
10 148587
11 469226
12 1475669
13 4624437
14 14447703
15 45017082
16 139937301
17 434093367
18 1344076131
19 4154688864
20 12823246677
21 39524238741
22 121671304191
23 374126377473
24 1149197708385
25 3526577233659
26 10812501524627
27 33123904911608