# A028011 (b-file synthesized from sequence entry)
0 1
1 30
2 589
3 9606
4 141469
5 1956918
6 25981309
7 335413254
8 4245767581
9 52992982614
10 654705201085
11 8028335357094
12 97906258582237
13 1189106856272118
14 14398317567128317
15 173947775018406726
16 2097931504239454237
17 25270527569760142230
18 304106756286138899005