# A139697 (b-file synthesized from sequence entry)
1 1
2 13
3 37
4 85
5 181
6 373
7 757
8 1525
9 3061
10 6133
11 12277
12 24565
13 49141
14 98293
15 196597
16 393205
17 786421
18 1572853
19 3145717
20 6291445
21 12582901
22 25165813
23 50331637
24 100663285
25 201326581
26 402653173
27 805306357
28 1610612725
29 3221225461
30 6442450933
31 12884901877