# A054911 (b-file synthesized from sequence entry)
0 0
1 1
2 1
3 1
4 1
5 1
6 1
7 1
8 1
9 2
10 2
11 2
12 3
13 3
14 4
15 5
16 6
17 9
18 13
19 16
20 28
21 40
22 68
23 117
24 273
25 665
26 2566
27 17059
28 374062