# A374455 (b-file synthesized from sequence entry)
0 1
1 5
2 35
3 235
4 1580
5 10626
6 71460
7 480570
8 3231845
9 21734235
10 146163251
11 982951365
12 6610371480
13 44454906580
14 298960311840
15 2010515259876
16 13520763292345
17 90927457083265
18 611489327404315
19 4112280377388895
20 27665184063541876
21 185981775414350150
22 1250731895575163300