# A007199 (b-file synthesized from sequence entry)
1 1
2 3
3 12
4 55
5 273
6 1425
7 7695
8 42576
9 239925
10 1371555
11 7931817
12 46310127
13 272559558
14 1615163592
15 9627985773
16 57688721354
17 347228163630