# A149035 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 10
4 34
5 135
6 534
7 2162
8 9280
9 39708
10 172019
11 767169
12 3419711
13 15355346
14 70114015
15 320273041
16 1469955154
17 6819015777
18 31654184259
19 147435154707
20 691694048874
21 3247544114623
22 15285725308604
23 72318503653480
24 342407029336305
25 1624357336822081
26 7735077406352818
27 36860754582925005