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A370555 as a simple table

na(n)
12
25
325
4425
5221
68177
7204425
813287625
9544792625
102200962205
11134258694505
1219467510703225
139791351537125
141928896252813625
158718611062717585
162240683043118419345
171124218135820660225
18365370894141714573125
1966132131839650337735625
201060759394707991417279425

[2,5,25,425,221,8177,204425,13287625,544792625,
 2200962205,134258694505,19467510703225,
 9791351537125,1928896252813625,8718611062717585,
 2240683043118419345,1124218135820660225,
 365370894141714573125,66132131839650337735625,
 1060759394707991417279425]