# A149587 (b-file synthesized from sequence entry)
0 1
1 1
2 5
3 15
4 55
5 215
6 881
7 3499
8 14705
9 62815
10 267691
11 1152031
12 5054975
13 22215495
14 97820089
15 435083549
16 1946783755
17 8714538577
18 39182038837
19 177168174583
20 802527055581
21 3641247264783
22 16585238682009
23 75740989879295
24 346271384506611
25 1586505453816213
26 7287225822759371
27 33516216036717503