# A175895 (b-file synthesized from sequence entry)
0 1
1 2
2 9
3 50
4 314
5 2116
6 14949
7 109246
8 818978
9 6263072
10 48668366
11 383182648
12 3050196328
13 24506969724
14 198482172753
15 1618700191002
16 13281652367078
17 109564878995724
18 908171084052990
19 7560049450347964
20 63176859344766204