# A153942 (b-file synthesized from sequence entry)
0 1
1 2
2 4
3 15
4 38
5 236
6 1250
7 13966
8 128542
9 2461620
10 40144584
11 1355506385
12 38359079886
13 2280018933124
14 113583264552803
15 11849601571255761
16 1037356176207581620
17 189822553366119038561