# A181076 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 5
4 20
5 168
6 3659
7 204644
8 25503314
9 7434144333
10 5248999682258
11 8079852389207554
12 28328874782544308254
13 244277149833867010587231
14 4673118265932181394325207044
15 198007423467261943865049734612821