# A027020 (b-file synthesized from sequence entry)
1 1
2 3
3 4
4 7
5 15
6 28
7 47
8 98
9 199
10 373
11 661
12 1404
13 2801
14 5283
15 9859
16 20495
17 40615
18 77040
19 147760
20 303553
21 599801
22 1143134
23 2228414
24 4544731
25 8968421
26 17160232
27 33801192
28 68602923
29 135308317
30 259763268
31 515250948
32 1042217402
33 2055373383