# A211293 (b-file synthesized from sequence entry)
0 1
1 3
2 9
3 25
4 69
5 191
6 531
7 1485
8 4173
9 11779
10 33381
11 94947
12 270979
13 775809
14 2227607
15 6413441
16 18510645
17 53548119
18 155231177
19 450869943
20 1311874981
21 3823307463
22 11159216577
23 32615423715
24 95446283091
25 279639107073
26 820162536291
27 2407847745541
28 7075424461287
29 20808497810757
30 61244466778891