# A200320 (b-file synthesized from sequence entry)
1 1
2 1
3 3
4 18
5 150
6 1590
7 20580
8 314790
9 5554710
10 111071520
11 2482076520
12 61301435580
13 1658129152680
14 48749053413060
15 1547849157554700
16 52785934927525800
17 1924269399236784600
18 74672595203551745400
19 3073314600152521124400
20 133716009695044269893400
21 6132253708189762323370200