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A208066 as a simple table

na(n)
116
2256
3704
41936
53696
67056
711424
818496
927200
1040000
1155200
1276176
13100464
14132496
15168896
16215296
17267264
18331776
19403200
20490000
21585200
22698896
23822624
24968256
251125696
261308736
271505504
281731856
291974000
302250000
312544000
322876416

[16,256,704,1936,3696,7056,11424,18496,27200,
 40000,55200,76176,100464,132496,168896,215296,
 267264,331776,403200,490000,585200,698896,822624,
 968256,1125696,1308736,1505504,1731856,1974000,
 2250000,2544000,2876416]