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A152729 as a simple table

na(n)
10
20
31
415
565
6176
7384
8736
91281
102079
113201
124720
136720
149296
1512545
1616575
1721505
1827456
1934560
2042960
2152801
2264239
2377441
2492576
25109824
26129376
27151425
28176175
29203841
30234640
31268800
32306560
33348161
34393855
35443905
36498576
37558144

[0,0,1,15,65,176,384,736,1281,2079,3201,4720,6720,
 9296,12545,16575,21505,27456,34560,42960,52801,
 64239,77441,92576,109824,129376,151425,176175,
 203841,234640,268800,306560,348161,393855,443905,
 498576,558144]