# A148215 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 4
4 13
5 31
6 89
7 283
8 869
9 2669
10 8870
11 29810
12 98119
13 333199
14 1177914
15 4047033
16 14102749
17 50959995
18 181208819
19 644899622
20 2360104239
21 8605418138
22 31204155230
23 115179384007
24 427767584786
25 1575929436375
26 5862275394312
27 22051157334933
28 82345073867692
29 308660266442344
30 1171134621701716
31 4423528229124228