# A347502 (b-file synthesized from sequence entry)
0 0
1 -1
2 -1
3 1
4 9
5 21
6 51
7 113
8 239
9 493
10 1003
11 2025
12 4071
13 8165
14 16355
15 32737
16 65503
17 131037
18 262107
19 524249
20 1048535
21 2097109
22 4194259
23 8388561
24 16777167
25 33554381
26 67108811
27 134217673
28 268435399
29 536870853
30 1073741763
31 2147483585
32 4294967231
33 8589934525