# A150559 (b-file synthesized from sequence entry)
0 1
1 2
2 7
3 26
4 106
5 441
6 1913
7 8405
8 37758
9 170982
10 784866
11 3623326
12 16879640
13 78965889
14 371797947
15 1756213725
16 8335157567
17 39660909579
18 189405764982
19 906414415367
20 4350153987934
21 20913639508721
22 100775558575863
23 486305001210289
24 2351158641458940
25 11381247702362433
26 55179764580772287
27 267812212122830377