# A137398 (b-file synthesized from sequence entry)
1 0
2 1
3 2
4 7
5 22
6 74
7 252
8 875
9 3078
10 10950
11 39316
12 142278
13 518364
14 1899668
15 6997688
16 25894579
17 96211398
18 358779118
19 1342323364
20 5037146738
21 18953759988
22 71497359884
23 270321915848
24 1024217489278
25 3888253473180
26 14787937448380
27 56337410614088
28 214967841333868
29 821473056041464
30 3143521372849960