# A054099 (b-file synthesized from sequence entry)
0 1
1 3
2 6
3 14
4 44
5 178
6 892
7 5354
8 37480
9 299842
10 2698580
11 26985802
12 296843824
13 3562125890
14 46307636572
15 648306912010
16 9724603680152
17 155593658882434
18 2645092201001380