# A112834 (b-file synthesized from sequence entry)
0 1
1 1
2 1
3 2
4 3
5 8
6 19
7 76
8 263
9 1584
10 8199
11 73272
12 566401
13 7555072
14 87000289
15 1730799376
16 29728075177
17 881736342784
18 22583659690665
19 998900331837728
20 38149790451459859
21 2516220411436892160
22 143302702816187031875