# A134092 (b-file synthesized from sequence entry)
0 1
1 3
2 18
3 110
4 780
5 6167
6 53494
7 504030
8 5112090
9 55411697
10 638154165
11 7770348170
12 99618149267
13 1339889000543
14 18848892749144
15 276573551651632
16 4222814264496510
17 66947348027905977
18 1099955438013660173