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A190112 as a simple table

na(n)
10
20
316
448
5120
6248
7440
8736
91152
101720
112464
123440
134672
146192
158080
1610344
1713040
1816264
1920024
2024376
2129456
2235248
2341832
2449360
2557808
2667280
2777936
2889760
29102840
30117392
31133376
32150888
33170184
34191200
35214048
36239016
37266024
38295184

[0,0,16,48,120,248,440,736,1152,1720,2464,3440,
 4672,6192,8080,10344,13040,16264,20024,24376,
 29456,35248,41832,49360,57808,67280,77936,89760,
 102840,117392,133376,150888,170184,191200,214048,
 239016,266024,295184]