# A369297 (b-file synthesized from sequence entry)
0 1
1 2
2 7
3 31
4 153
5 806
6 4440
7 25266
8 147364
9 876282
10 5292527
11 32378125
12 200218715
13 1249456536
14 7858638756
15 49766595855
16 317051378103
17 2030589300596
18 13066646029059
19 84439101344619
20 547746622599561
21 3565472378360110
22 23282050305073680
23 152466688160732190