# A015938 (b-file synthesized from sequence entry)
1 3
2 6
3 9
4 20
5 56
6 66
7 133
8 260
9 513
10 1030
11 2091
12 4128
13 8593
14 16394
15 33195
16 65584
17 131345
18 262176
19 524989
20 1048660
21 2097291
22 4195642
23 8388997
24 16777272
25 33554525
26 67109198
27 134217729
28 268435468
29 536875753
30 1073741910