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A306083 as a simple table

na(n)
01
11
21
31
425
5361
63361
725201
8166825
91383481
1025879921
11651816001
1214450460025
13280347467401
145253918022081
15107822784560401
162578135250199625
1769030779356572121
181953531819704493841
1956903093167217522401
201689294590583626265625

[1,1,1,1,25,361,3361,25201,166825,1383481,
 25879921,651816001,14450460025,280347467401,
 5253918022081,107822784560401,2578135250199625,
 69030779356572121,1953531819704493841,
 56903093167217522401,1689294590583626265625]