# A150004 (b-file synthesized from sequence entry)
0 1
1 2
2 5
3 17
4 60
5 221
6 826
7 3201
8 12729
9 51321
10 208832
11 858309
12 3572790
13 14997447
14 63313413
15 268659183
16 1147269994
17 4927336053
18 21248061031
19 91934267393
20 399246195339
21 1740479420880
22 7611122284575
23 33365943094805
24 146630648098050
25 646084259213450
26 2853629091711458
27 12628825116126099