# A290443 (b-file synthesized from sequence entry)
1 1
2 2
3 10
4 56
5 378
6 2772
7 21879
8 181610
9 1570426
10 14024660
11 128623768
12 1206053576
13 11523121900
14 111885197400
15 1101664016730
16 10981102287240
17 110647549986930
18 1125688857747300
19 11551507304378580
20 119462291733779280
21 1244159075360113380
22 13040616137944154760
23 137485676447508793950