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A279541 as a simple table

na(n)
11
25
325
435
5175
6385
71225
81925
99625
1013475
1148125
1255825
13148225
14279125
15390775
161395625
171730575
184298525
198652875
2012114025
2143264375
2260570125
23133254275
24302850625
25423990875
26642043325
272119954375

[1,5,25,35,175,385,1225,1925,9625,13475,48125,
 55825,148225,279125,390775,1395625,1730575,
 4298525,8652875,12114025,43264375,60570125,
 133254275,302850625,423990875,642043325,
 2119954375]