# A057914 (b-file synthesized from sequence entry)
1 0
2 1
3 2
4 6
5 7
6 26
7 35
8 50
9 115
10 171
11 204
12 219
13 362
14 644
15 1959
16 4427
17 5406
18 8030
19 10755
20 67826