# A227620 (b-file synthesized from sequence entry)
1 1
2 1
3 4
4 5
5 11
6 22
7 36
8 69
9 121
10 221
11 386
12 686
13 1210
14 2122
15 3734
16 6517
17 11408
18 19903
19 34714
20 60485
21 105312
22 183272
23 318758
24 554262
25 963361
26 1674076
27 2908426
28 5052066
29 8774386
30 15237482
31 26458718
32 45939797
33 79759442
34 138468656
35 240382216
36 417289619
37 724369536
38 1257396992