# A166887 (b-file synthesized from sequence entry)
1 1
2 3
3 18
4 157
5 1812
6 25989
7 445255
8 8865333
9 201058614
10 5114874693
11 144207579708
12 4462151144553
13 150316762118466
14 5475746846833734
15 214463847533104125
16 8986421286160678944
17 401112805593137715609
18 18999650382886046745879