# A150554 (b-file synthesized from sequence entry)
0 1
1 2
2 7
3 26
4 105
5 444
6 1932
7 8601
8 38930
9 178481
10 826762
11 3861570
12 18160660
13 85900052
14 408283798
15 1948675114
16 9334185779
17 44850984953
18 216102816636
19 1043761903239
20 5052170344776
21 24501360453004
22 119028872731494
23 579149675299391
24 2821900337984227
25 13767310597585325
26 67245668135097714