# A361447 (b-file synthesized from sequence entry)
0 1
1 2
2 9
3 49
4 338
5 2744
6 26025
7 282419
8 3463502
9 47439030
10 718618117
11 11937743088
12 215896959624
13 4224096594516
14 88919920910684
15 2004237153640098
16 48165411560792500
17 1229462431057436457
18 33221743136066636436
19 947415638925100675208
20 28436953641282225835143