# A008986 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 9
4 37
5 182
6 1143
7 7553
8 54559
9 412306
10 3251240
11 26478264
12 221714164
13 1900103364
14 16613990484
15 147816411921
16 1335367515821