# A358853 (b-file synthesized from sequence entry)
2 20
3 390
4 2930
5 23580
6 145210
7 1045940
8 6228730
9 43322370
10 260600210
11 1776654220
12 10913989610
13 73525916750
14 461264468640
15 3088176680560
16 19722405442490
17 131703577902460
18 853035459491710
19 5693694272274220
20 37271158654667390
21 248902943147007900