# A061439 (b-file synthesized from sequence entry)
1 2
2 4
3 9
4 21
5 46
6 99
7 215
8 464
9 999
10 2154
11 4641
12 9999
13 21544
14 46415
15 99999
16 215443
17 464158
18 999999
19 2154434
20 4641588
21 9999999
22 21544346
23 46415888
24 99999999
25 215443469
26 464158883
27 999999999
28 2154434690
29 4641588833
30 9999999999