# A107112 (b-file synthesized from sequence entry)
0 1
1 2
2 5
3 15
4 54
5 228
6 1106
7 6069
8 37212
9 252287
10 1873928
11 15127191
12 131788320
13 1231650843
14 12283477562
15 130137706957
16 1458823402224
17 17242265101407
18 214202486482516
19 2789239633559763
20 37974772474452740
21 539356744121554370