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A173548 as a simple table

na(n)
412
548
6120
7384
81068
92472
104896
119072
1215516
1325608
1440296
1561608
1691068
17131640
18185136
19255960
20346860
21463248
22608088
23789240
241010316
251280544
261604832
271994064
282454012
292998656
303633912
314376064
325232972
336223080
347354896

[12,48,120,384,1068,2472,4896,9072,15516,25608,
 40296,61608,91068,131640,185136,255960,346860,
 463248,608088,789240,1010316,1280544,1604832,
 1994064,2454012,2998656,3633912,4376064,5232972,
 6223080,7354896]