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A248108 as a simple table

na(n)
136
2900
37056
432400
541616
644100
754756
863504
969696
10108900
11112896
12176400
13213444
14298116
15396900
16435600
17509796
18608400
19705600
20736164
21756900
22777924
23853776
24980100
251040400
261192464
271299600
281368900
291920996
302039184
312304324
322340900
332414916
342433600
352683044
362722500
372822400
382944656
393755844
403802500
413920400
424161600
434588164
444769856
455336100
465731236

[36,900,7056,32400,41616,44100,54756,63504,69696,
 108900,112896,176400,213444,298116,396900,435600,
 509796,608400,705600,736164,756900,777924,853776,
 980100,1040400,1192464,1299600,1368900,1920996,
 2039184,2304324,2340900,2414916,2433600,2683044,
 2722500,2822400,2944656,3755844,3802500,3920400,
 4161600,4588164,4769856,5336100,5731236]