# A151396 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 6
4 21
5 52
6 193
7 532
8 2034
9 5985
10 23283
11 71610
12 281688
13 894660
14 3545919
15 11541114
16 45988056
17 152599174
18 610459630
19 2057627572
20 8255756937
21 28190598072
22 113365682625
23 391366771432
24 1576636806694
25 5494187368180
26 22164611973120
27 77867785091880
28 314485620041700
29 1112719363776720
30 4498007052780945