# A045687 (b-file synthesized from sequence entry)
0 0
1 0
2 0
3 2
4 4
5 12
6 24
7 56
8 112
9 238
10 480
11 992
12 1980
13 4032
14 8064
15 16242
16 32512
17 65280
18 130536
19 261632
20 523260
21 1047494
22 2095104
23 4192256
24 8384400
25 16773108
26 33546240
27 67100432
28 134201340
29 268419072
30 536837640
31 1073709056
32 2147418112