# A004735 (b-file synthesized from sequence entry)
1 1
2 3
3 4
4 15
5 8
6 35
7 64
8 315
9 128
10 693
11 512
12 3003
13 1024
14 6435
15 16384
16 109395
17 32768
18 230945
19 131072
20 969969
21 262144
22 2028117
23 2097152
24 16900975
25 4194304
26 35102025
27 16777216
28 145422675
29 33554432