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A248462 as a simple table

na(n)
16
218
348
496
5174
6282
7432
8624
9870
101170
111536
121968
132478
143066
153744
164512
175382
186354
197440
208640
219966
2211418
2313008
2414736
2516614
2618642
2720832
2823184
2925710
3028410
3131296
3234368
3337638
3441106
3544784
3648672
3752782
3857114
3961680
4066480
4171526

[6,18,48,96,174,282,432,624,870,1170,1536,1968,
 2478,3066,3744,4512,5382,6354,7440,8640,9966,
 11418,13008,14736,16614,18642,20832,23184,25710,
 28410,31296,34368,37638,41106,44784,48672,52782,
 57114,61680,66480,71526]