# A124639 (b-file synthesized from sequence entry)
0 1
1 0
2 3
3 4
4 12
5 20
6 52
7 84
8 198
9 352
10 730
11 1332
12 2648
13 4808
14 9232
15 16780
16 31227
17 56312
18 102641
19 182808