# A045632 (b-file synthesized from sequence entry)
0 1
1 1
2 1
3 2
4 5
5 14
6 40
7 127
8 408
9 1364
10 4638
11 16079
12 56401
13 200169
14 716599
15 2585833
16 9392704
17 34319666
18 126046498
19 465076159
20 1723092407
21 6407856762
22 23910255143
23 89493903437
24 335912684824
25 1264106399919
26 4768447977465
27 18027218146451