# A150097 (b-file synthesized from sequence entry)
0 1
1 2
2 6
3 19
4 67
5 246
6 946
7 3738
8 15131
9 62393
10 261234
11 1107945
12 4748851
13 20543866
14 89574958
15 393287068
16 1737215366
17 7714927830
18 34425987197
19 154278363561
20 694067730740
21 3133405988933
22 14191015208980
23 64457259869876
24 293553080677134
25 1340182505670387
26 6132274838067467
27 28118123306507632