# A149919 (b-file synthesized from sequence entry)
0 1
1 2
2 5
3 15
4 47
5 157
6 549
7 1982
8 7354
9 27927
10 107979
11 424329
12 1690034
13 6812041
14 27739662
15 114012290
16 472388018
17 1971765577
18 8284065362
19 35014751268
20 148798722863
21 635518054040
22 2726620459966
23 11748054498309
24 50814320078733
25 220590909294021
26 960812893101569
27 4198183258800311