# A149650 (b-file synthesized from sequence entry)
0 1
1 1
2 5
3 15
4 71
5 277
6 1305
7 5551
8 26459
9 117339
10 564175
11 2569541
12 12423757
13 57631629
14 279785441
15 1314805215
16 6403579035
17 30380380575
18 148347638871
19 708946177403
20 3469106040755
21 16674006366701
22 81734383525829
23 394662393972669
24 1937465356348453
25 9390425835596597
26 46157868733303741
27 224412725792613665