# A099483 (b-file synthesized from sequence entry)
0 0
1 1
2 3
3 7
4 18
5 48
6 126
7 329
8 861
9 2255
10 5904
11 15456
12 40464
13 105937
14 277347
15 726103
16 1900962
17 4976784
18 13029390
19 34111385
20 89304765
21 233802911
22 612103968
23 1602508992
24 4195423008
25 10983760033
26 28755857091
27 75283811239
28 197095576626