# A180670 (b-file synthesized from sequence entry)
0 0
1 0
2 1
3 9
4 42
5 140
6 383
7 925
8 2056
9 4316
10 8705
11 17069
12 32810
13 62192
14 116743
15 217673
16 404000
17 747496
18 1380177
19 2544865
20 4688186
21 8631620
22 15886111
23 29230725
24 53776968
25 98926372
26 181971057
27 334716197
28 615660634
29 1132400520