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A050189 as a simple table

na(n)
40
55
612
735
864
9126
10200
11330
12480
13715
14980
151365
161792
172380
183024
193876
204800
215985
227260
238855
2410560
2512650
2614872
2717550
2820384
2923751
3027300
3131465
3235840
3340920
3446240
3552360
3658752
3766045
3873644
3982251
4091200

[0,5,12,35,64,126,200,330,480,715,980,1365,1792,
 2380,3024,3876,4800,5985,7260,8855,10560,12650,
 14872,17550,20384,23751,27300,31465,35840,40920,
 46240,52360,58752,66045,73644,82251,91200]