# A370283 (b-file synthesized from sequence entry)
0 1
1 3
2 23
3 201
4 1855
5 17643
6 171059
7 1680822
8 16679031
9 166763190
10 1677365833
11 16953705860
12 172047413395
13 1751870166998
14 17890003430490
15 183148065506136
16 1879053717936423
17 19315569214866495
18 198890064249729314
19 2051053032020625350
20 21180292180328586305