# A148557 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 6
4 18
5 47
6 146
7 447
8 1466
9 4942
10 16980
11 60336
12 215195
13 789272
14 2907758
15 10919990
16 41340269
17 158282738
18 612024510
19 2382090777
20 9361524557
21 36969568871
22 147194884001
23 588824950464
24 2370187980897
25 9587635766815
26 38961725380190
27 159104026177375
28 652087561742696
29 2684530321305299