# A090165 (b-file synthesized from sequence entry)
0 1
1 3
2 6
3 14
4 32
5 66
6 134
7 280
8 585
9 1214
10 2462
11 4946
12 9861
13 19600
14 38688
15 76086
16 148435
17 288098
18 554970
19 1062628
20 2016814
21 3800682
22 7093209
23 13127364
24 24053454
25 43657576
26 78382622
27 139237375