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A067707 as a simple table

na(n)
115
236
363
496
5135
6180
7231
8288
9351
10420
11495
12576
13663
14756
15855
16960
171071
181188
191311
201440
211575
221716
231863
242016
252175
262340
272511
282688
292871
303060
313255
323456
333663
343876
354095
364320
374551
384788
395031
405280
415535
425796
436063
446336
456615
466900

[15,36,63,96,135,180,231,288,351,420,495,576,663,
 756,855,960,1071,1188,1311,1440,1575,1716,1863,
 2016,2175,2340,2511,2688,2871,3060,3255,3456,3663,
 3876,4095,4320,4551,4788,5031,5280,5535,5796,6063,
 6336,6615,6900]