# A370284 (b-file synthesized from sequence entry)
0 1
1 3
2 21
3 168
4 1425
5 12483
6 111594
7 1011636
8 9264753
9 85510590
10 794087151
11 7410887718
12 69446624910
13 653019755430
14 6158495001960
15 58226492157048
16 551725482707505
17 5238008159399163
18 49814314319342424
19 474467729545936650
20 4525387365179378775