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A321307 as a simple table

na(n)
85
910
1041
1198
12257
13537
141131
152116
163893
176665
1811177
1917867
2028011
2142419
2263145
2391586
24130870
25183230
26253265
27344373
28463073
29614332
30807138
311048517
321350574
331722948
342181614
352739523
363417356
374232137

[5,10,41,98,257,537,1131,2116,3893,6665,11177,
 17867,28011,42419,63145,91586,130870,183230,
 253265,344373,463073,614332,807138,1048517,
 1350574,1722948,2181614,2739523,3417356,4232137]