# A180665 (b-file synthesized from sequence entry)
0 0
1 1
2 2
3 7
4 17
5 47
6 121
7 320
8 835
9 2190
10 5730
11 15006
12 39282
13 102847
14 269252
15 704917
16 1845491
17 4831565
18 12649195
19 33116030
20 86698885
21 226980636
22 594243012
23 1555748412
24 4073002212
25 10663258237
26 27916772486
27 73087059235