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A173283 as a simple table

na(n)
01
13
28
316
432
556
696
7152
8240
9360
10536
11768
121096
131520
142096
152824
163792
175000
186568
198496
2010960
2113960
2217728
2322264
2427896
2534624
2642872
2752640
2864504
2978464
3095248
31114856
32138256
33165448
34197640
35234832
36278592
37328920
38387744
39455064

[1,3,8,16,32,56,96,152,240,360,536,768,1096,1520,
 2096,2824,3792,5000,6568,8496,10960,13960,17728,
 22264,27896,34624,42872,52640,64504,78464,95248,
 114856,138256,165448,197640,234832,278592,328920,
 387744,455064]