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A304298 as a simple table

na(n)
12
21
35
44
513
630
743
8129
9245
10519
111254
122525
135707
1412749
1527205
1660962
17133639
18292125
19647249
201418245
213119874
226875729
2315098235
2433237465
2573128441
26160782286
27353832779
28778266279
291711882901
303766329669
318284438272

[2,1,5,4,13,30,43,129,245,519,1254,2525,5707,
 12749,27205,60962,133639,292125,647249,1418245,
 3119874,6875729,15098235,33237465,73128441,
 160782286,353832779,778266279,1711882901,
 3766329669,8284438272]