# A030893 (b-file synthesized from sequence entry)
1 1
2 3
3 9
4 36
5 181
6 1086
7 7607
8 60862
9 547759
10 5477598
11 60253580
12 723042962
13 9399558518
14 131593819259
15 1973907288891
16 31582516622266
17 536902782578529
18 9664250086413531
19 183620751641857104
20 3672415032837142098