# A247661 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 6
4 12
5 20
6 35
7 56
8 92
9 142
10 221
11 330
12 496
13 724
14 1056
15 1512
16 2155
17 3028
18 4240
19 5866
20 8085