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A195567 as a simple table

na(n)
15
25
3325
4449
53649
620165
720485
81331845
91840001
1014953601
1182636165
1283947525
135457900485
147540323649
1561279853249
16338642984005
17344016936965
1822366474855685
1930900244473601
20251124823660801
211387758865816325
221409781323735045

[5,5,325,449,3649,20165,20485,1331845,1840001,
 14953601,82636165,83947525,5457900485,7540323649,
 61279853249,338642984005,344016936965,
 22366474855685,30900244473601,251124823660801,
 1387758865816325,1409781323735045]