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A344840 as a simple table

na(n)
01
15
235
3265
42195
519625
6187755
71909185
820521515
9232124745
102752591475
1134108980105
12440444019835
135912197332865
1482320781521195
151186703083508025
1617680850448587155
17271845880552898985
184307188044378111915
1970236616096770062945
201177406236243423738475

[1,5,35,265,2195,19625,187755,1909185,20521515,
 232124745,2752591475,34108980105,440444019835,
 5912197332865,82320781521195,1186703083508025,
 17680850448587155,271845880552898985,
 4307188044378111915,70236616096770062945,
 1177406236243423738475]