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A290184 as a simple table

na(n)
120
242
3100
4156
5272
6294
7342
8500
9660
10780
111332
121980
132028
142058
152500
163900
174624
185256
195940
206498
217260
229312
2310140
2411772
2512500
2614406
2717820
2819500
2921780
3026364
3126406
3237056
3349284
3450700
3553460
3662244
3762500
3865340
3965792
4078608
4179860
4297500

[20,42,100,156,272,294,342,500,660,780,1332,1980,
 2028,2058,2500,3900,4624,5256,5940,6498,7260,9312,
 10140,11772,12500,14406,17820,19500,21780,26364,
 26406,37056,49284,50700,53460,62244,62500,65340,
 65792,78608,79860,97500]