# A049284 (b-file synthesized from sequence entry)
1 0
2 0
3 0
4 1
5 1
6 2
7 4
8 7
9 13
10 24
11 43
12 78
13 140
14 251
15 452
16 812
17 1457
18 2617
19 4697
20 8428
21 15126
22 27142
23 48700
24 87384
25 156787
26 281307
27 504723
28 905562
29 1624731
30 2915039
31 5230040
32 9383505
33 16835453
34 30205347
35 54192931
36 97230224
37 174445475
38 312981054
39 561534340
40 1007475560