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A138402 as a simple table

na(n)
112
272
3600
42352
514520
628392
783232
8129960
9279312
10706440
11922560
121872792
132824080
143416952
154877472
167887672
1712113880
1813842120
1920146632
2025406640
2128392912
2238943840
2347451432
2462734320
2588519872
26104050200
27112540272

[12,72,600,2352,14520,28392,83232,129960,279312,
 706440,922560,1872792,2824080,3416952,4877472,
 7887672,12113880,13842120,20146632,25406640,
 28392912,38943840,47451432,62734320,88519872,
 104050200,112540272]