# A366980 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 24
4 171
5 1336
6 11060
7 95298
8 845649
9 7675398
10 70921457
11 664905445
12 6309060313
13 60473691666
14 584684295383
15 5695312881404
16 55839455579659
17 550621231581791
18 5457218248143692
19 54332533436452743
20 543148496962279730
21 5449742750024662824