# A143701 (b-file synthesized from sequence entry)
1 1
2 3
3 7
4 15
5 27
6 63
7 125
8 243
9 343
10 999
11 1805
12 3721
13 8181
14 16335
15 32761
16 65533
17 112847
18 190269
19 519375
20 1046875
21 1953125
22 4192479
23 8385125
24 16775019
25 24398405
26 66976875
27 134216625