# A148834 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 8
4 27
5 90
6 314
7 1100
8 4097
9 15379
10 58904
11 226907
12 884995
13 3490548
14 13923584
15 55904938
16 225959563
17 917849212
18 3749844940
19 15409605006
20 63632836257
21 263813965837
22 1097573897750
23 4581668896724
24 19194046607877
25 80679116225178
26 340094072595665
27 1437257061661419
28 6088250441078777