# A149854 (b-file synthesized from sequence entry)
0 1
1 2
2 5
3 13
4 37
5 111
6 346
7 1100
8 3557
9 11683
10 38926
11 131154
12 445765
13 1526305
14 5261985
15 18254431
16 63672445
17 223138635
18 785267758
19 2774187398
20 9835528373
21 34983477901
22 124795716145
23 446376963933
24 1600610895841
25 5752771831361
26 20720666878796
27 74782199279800
28 270397125942817
29 979410568546113
30 3553373294757136