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A239225 as a simple table

na(n)
11
21
31
49
59
675
7225
81225
91225
1019845
1199225
12160083
13480249
141288287
153006003
1641409225
1741409225
181329696225
1911967266025
2010667118605
2153335593025
2285530896451
23940839860961
241371086188563
254113258565689
2621972535073125
27285642955950625
28176021737014375

[1,1,1,9,9,75,225,1225,1225,19845,99225,160083,
 480249,1288287,3006003,41409225,41409225,
 1329696225,11967266025,10667118605,53335593025,
 85530896451,940839860961,1371086188563,
 4113258565689,21972535073125,285642955950625,
 176021737014375]