# A148439 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 6
4 15
5 43
6 143
7 447
8 1457
9 5153
10 17712
11 62226
12 228307
13 826403
14 3045356
15 11463886
16 42915761
17 163162575
18 626421084
19 2403106726
20 9332107293
21 36397643689
22 142264226087
23 560927157537
24 2216454163673
25 8789867068979
26 35060453041676
27 140072687401512
28 561842105897395
29 2261924959908545