# A150660 (b-file synthesized from sequence entry)
0 1
1 2
2 7
3 28
4 122
5 553
6 2571
7 12160
8 58208
9 281102
10 1366505
11 6676481
12 32747954
13 161124710
14 794716382
15 3927618936
16 19442645394
17 96375419793
18 478259944819
19 2375582028014
20 11809212355996
21 58744206985928
22 292388266077461
23 1456030648082389
24 7253832887596507
25 36151517763970697
26 180229899010820326