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Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A068874 as a simple table

na(n)
11
225
349
481
5100
6169
7196
8289
9361
10529
11529
12900
13900
141156
151444
161681
172025
182304

[1,25,49,81,100,169,196,289,361,529,529,900,900,
 1156,1444,1681,2025,2304]