# A051389 (b-file synthesized from sequence entry)
1 1
2 2
3 4
4 8
5 20
6 42
7 102
8 250
9 610
10 1486
11 3710
12 9228
13 23050
14 57718
15 145288
16 365820
17 922194
18 2327914
19 5885800
20 14890796
21 37701452
22 95550472
23 242325118
24 614869792
25 1561228066