# A149604 (b-file synthesized from sequence entry)
0 1
1 1
2 5
3 15
4 61
5 231
6 963
7 3883
8 16603
9 69357
10 301579
11 1289895
12 5675515
13 24684299
14 109567115
15 482388707
16 2156180879
17 9580954187
18 43072169001
19 192787715153
20 870874751157
21 3921099892891
22 17784852325551
23 80469582888555
24 366262434878891
25 1664043214385507
26 7597131200868419
27 34637812490666299