# A049153 (b-file synthesized from sequence entry)
0 1
1 1
2 1
3 1
4 1
5 1
6 3
7 19
8 93
9 353
10 1125
11 3173
12 8221
13 20297
14 50055
15 130255
16 370545
17 1140001
18 3636265
19 11563041
20 35888977
21 108146737
22 317966187
23 922132531
24 2672794621
25 7832167585
26 23346616525
27 70754228885
28 216792576093