# A131588 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 7
4 11
5 31
6 43
7 127
8 171
9 511
10 683
11 2047
12 2731
13 8191
14 10923
15 32767
16 43691
17 131071
18 174763
19 524287
20 699051
21 2097151
22 2796203
23 8388607
24 11184811
25 33554431
26 44739243
27 134217727
28 178956971
29 536870911
30 715827883
31 2147483647
32 2863311531