# A006482 (b-file synthesized from sequence entry)
1 1
2 1
3 0
4 2
5 5
6 9
7 14
8 20
9 69
10 125
11 209
12 329
13 923
14 1715
15 3002
16 5004
17 12869
18 24309
19 43757
20 75581
21 184755
22 352715
23 646645
24 1144065
25 2704155
26 5200299
27 9657699
28 17383859
29 40116599