# A149126 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 9
4 34
5 103
6 399
7 1329
8 5420
9 19005
10 79683
11 292567
12 1246622
13 4721185
14 20426140
15 79079933
16 346099728
17 1365633469
18 6028191661
19 24148242373
20 107405519254
21 435530918701
22 1949357412248
23 7989116362455
24 35944021103058
25 148647982968273
26 671868249629145
27 2800152794320207
28 12706971263393744