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A304129 as a simple table

na(n)
15
217
319
444
580
6140
7244
8436
9800
101444
112584
124630
138328
1415032
1527058
1648590
1787400
18157336
19283092
20509306
21916198
221648190
232965634
245335868
259599288
2617270130
2731071812
2855902190
29100575652
30180948570
31325547770
32585704612

[5,17,19,44,80,140,244,436,800,1444,2584,4630,
 8328,15032,27058,48590,87400,157336,283092,509306,
 916198,1648190,2965634,5335868,9599288,17270130,
 31071812,55902190,100575652,180948570,325547770,
 585704612]