# A234007 (b-file synthesized from sequence entry)
1 0
2 1
3 2
4 9
5 30
6 110
7 387
8 1419
9 5185
10 19225
11 71634
12 269250
13 1017260
14 3864267
15 14742260
16 56470053
17 217052829
18 836878982