# A178089 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 6
4 26
5 164
6 1548
7 22612
8 527016
9 20075480
10 1272488296
11 136039530768
12 24791209794352
13 7767414503113808
14 4214117431305739680
15 3983248890848252043616
16 6594358097712974323610528
17 19210839739434953100591639104
18 98895926239537023373263092515008