# A098821 (b-file synthesized from sequence entry)
0 4
1 4
2 5
3 9
4 21
5 53
6 133
7 325
8 773
9 1797
10 4101
11 9221
12 20485
13 45061
14 98309
15 212997
16 458757
17 983045
18 2097157
19 4456453
20 9437189
21 19922949
22 41943045
23 88080389
24 184549381
25 385875973
26 805306373
27 1677721605
28 3489660933
29 7247757317