# A155611 (b-file synthesized from sequence entry)
0 1
1 4
2 28
3 190
4 1216
5 7534
6 45928
7 277750
8 1673056
9 10058014
10 60407128
11 362619910
12 2176250896
13 13059099694
14 78359381128
15 470170635670
16 2821066860736
17 16926530304574
18 101559569247928
19 609358577749030
20 3656154953278576