# A192619 (b-file synthesized from sequence entry)
0 1
1 4
2 20
3 104
4 556
5 3048
6 17064
7 97216
8 562036
9 3289836
10 19461448
11 116178600
12 699045176
13 4235292680
14 25816944176
15 158223753376
16 974389668364
17 6026623271840
18 37420762694588
19 233179517592232
20 1457706542138344
21 9139698522931008