# A052749 (b-file synthesized from sequence entry)
0 0
1 0
2 0
3 6
4 24
5 70
6 180
7 434
8 1008
9 2286
10 5100
11 11242
12 24552
13 53222
14 114660
15 245730
16 524256
17 1114078
18 2359260
19 4980698
20 10485720
21 22020054
22 46137300
23 96468946
24 201326544
25 419430350
26 872415180
27 1811939274
28 3758096328
29 7784628166
30 16106127300
31 33285996482