# A151456 (b-file synthesized from sequence entry)
0 1
1 0
2 2
3 2
4 10
5 21
6 81
7 224
8 803
9 2561
10 9050
11 30870
12 110319
13 390692
14 1416287
15 5140142
16 18897316
17 69766341
18 259721708
19 971424259
20 3655211118
21 13814548450
22 52455943266
23 199966174108
24 765230937806
25 2938440326656
26 11320368884041
27 43742501535980
28 169501362940771
29 658540291021676
30 2564869428603860