# A004397 (b-file synthesized from sequence entry)
1 3
2 4
3 7
4 10
5 16
6 21
7 30
8 40
9 57
10 84
11 120
12 181
13 274
14 420
15 657
16 1040
17 1656
18 2645
19 4248
20 6836
21 11019
22 17790
23 28740
24 46457
25 75122
26 121494
27 196521
28 317918
29 514338
30 832153
31 1346396
32 2178440
33 3524715
34 5703026
35 9227614
36 14930503
37 24157974
38 39088332
39 63246153