# A083411 (b-file synthesized from sequence entry)
1 0
2 1
3 9
4 79
5 765
6 8311
7 100989
8 1362439
9 20246445
10 328972471
11 5805917469
12 110645911399
13 2265191981325
14 49589790516631
15 1156201277261949
16 28605950745797959
17 748605590542359405
18 20661245832389468791
19 599820758571599742429
20 18272940402442730318119
21 582867486201919540724685