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A208067 as a simple table

na(n)
126
2676
32080
46400
512960
626244
744064
873984
9111520
10168100
11236160
12331776
13443520
14592900
15763840
16984064
171232064
181542564
191887840
202310400
212775520
223334276
233944160
244665600
255447520
266360484
277344064
288479744
299696960

[26,676,2080,6400,12960,26244,44064,73984,111520,
 168100,236160,331776,443520,592900,763840,984064,
 1232064,1542564,1887840,2310400,2775520,3334276,
 3944160,4665600,5447520,6360484,7344064,8479744,
 9696960]