# A082989 (b-file synthesized from sequence entry)
0 1
1 0
2 0
3 1
4 4
5 13
6 42
7 139
8 470
9 1616
10 5632
11 19852
12 70654
13 253559
14 916558
15 3334211
16 12197142
17 44842184
18 165597008
19 613991206
20 2284809072
21 8530458154
22 31945128628
23 119960276246
24 451621453764
25 1704240175868
26 6445111657272