# A127389 (b-file synthesized from sequence entry)
0 1
1 1
2 0
3 1
4 2
5 4
6 10
7 23
8 56
9 138
10 344
11 870
12 2220
13 5716
14 14828
15 38717
16 101682
17 268416
18 711810
19 1895432
20 5066030
21 13586082
22 36547534
23 98593064
24 266661162
25 722953814
26 1964358938
27 5348367006
28 14589803090
29 39870312218
30 109136843138