# A061252 (b-file synthesized from sequence entry)
0 0
1 1
2 31
3 721
4 14911
5 289201
6 5386591
7 97576081
8 1732076671
9 30276117361
10 522861237151
11 8942430185041
12 151728638820031
13 2557404559011121
14 42864668012537311
15 715027614225987601
16 11878335717996660991