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A300906 as a simple table

na(n)
11
26
328
484
5120
6364
7420
8496
9672
10840
111080
121320
131488
141782
152280
162760
173276
183360
193472
203480
213720
223780
235640
247080
257392
267440
277560
288128
298736
309240
319480
3210416
3310920
3411880
3512400
3615456
3715960
3816368
3916380
4017880
4118360
4218600
4319320
4420520

[1,6,28,84,120,364,420,496,672,840,1080,1320,1488,
 1782,2280,2760,3276,3360,3472,3480,3720,3780,5640,
 7080,7392,7440,7560,8128,8736,9240,9480,10416,
 10920,11880,12400,15456,15960,16368,16380,17880,
 18360,18600,19320,20520]