# A003317 (b-file synthesized from sequence entry)
3 1
4 1
5 2
6 3
7 6
8 12
9 28
10 68
11 184
12 526
13 1602
14 5075
15 16711
16 56428
17 195003
18 685649
19 2447882
20 8850157
21 32359428
22 119492766
23 445236635
24 1672636369
25 6331624545
26 24138404479
27 92640942148
28 357805122286
29 1390318899884
30 5433781135206