# A015489 (b-file synthesized from sequence entry)
0 1
1 4
2 17
3 289
4 18785
5 4827745
6 4948438625
7 20273753046625
8 332185443668950625
9 21770437421732017110625
10 5707011317919939625464790625
11 5984240806710536532650993759190625