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A360284 as a simple table

na(n)
20
32
47
516
629
748
873
9106
10148
11199
12260
13333
14417
15515
16627
17754
18897
191057
201234
211431
221647
231884
242142
252423
262727
273056
283410
293791
304198
314634
325099
335594
346120
356678
367268
377893
388552
399247
409979
4110748
4211555
4312402
4413290

[0,2,7,16,29,48,73,106,148,199,260,333,417,515,
 627,754,897,1057,1234,1431,1647,1884,2142,2423,
 2727,3056,3410,3791,4198,4634,5099,5594,6120,6678,
 7268,7893,8552,9247,9979,10748,11555,12402,13290]