# A147480 (b-file synthesized from sequence entry)
1 1
2 1
3 1
4 1
5 1
6 9
7 21
8 73
9 310
10 1107
11 5232
12 33319
13 240772
14 2106289
15 21011261
16 262231181
17 3633528079
18 62517538899