# A348095 (b-file synthesized from sequence entry)
1 0
2 0
3 0
4 1
5 1
6 10
7 42
8 254
9 1331
10 7358
11 39543
12 212911
13 1135876
14 6039878
15 31975124
16 168790048
17 888664299
18 4669177072