# A004729 (b-file synthesized from sequence entry)
0 1
1 3
2 5
3 15
4 17
5 51
6 85
7 255
8 257
9 771
10 1285
11 3855
12 4369
13 13107
14 21845
15 65535
16 65537
17 196611
18 327685
19 983055
20 1114129
21 3342387
22 5570645
23 16711935
24 16843009
25 50529027
26 84215045
27 252645135
28 286331153
29 858993459
30 1431655765
31 4294967295