# A287816 (b-file synthesized from sequence entry)
0 1
1 9
2 65
3 471
4 3413
5 24733
6 179233
7 1298853
8 9412437
9 68209395
10 494295113
11 3582023557
12 25957960001
13 188110345129
14 1363185009337
15 9878634630295
16 71587804656589
17 518777540353453
18 3759441118026705
19 27243657291488469
20 197427447142906157
21 1430703538380753875