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A250121 as a simple table

na(n)
01
16
215
330
449
573
6102
7135
8174
9217
10265
11318
12375
13438
14505
15577
16654
17735
18822
19913
201009
211110
221215
231326
241441
251561
261686
271815
281950
292089
302233
312382
322535
332694
342857
353025
363198
373375
383558
393745
403937
414134

[1,6,15,30,49,73,102,135,174,217,265,318,375,438,
 505,577,654,735,822,913,1009,1110,1215,1326,1441,
 1561,1686,1815,1950,2089,2233,2382,2535,2694,2857,
 3025,3198,3375,3558,3745,3937,4134]