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A304854 as a simple table

na(n)
121
2127
391
4264
5731
62073
76750
823642
980209
10281982
111002046
123608377
1312962477
1446720095
15168772741
16610745581
172209961264
188001134385
1928984697206
20105018572887
21380523339190
221378930510442
234997467621045
2418112318334850

[21,127,91,264,731,2073,6750,23642,80209,281982,
 1002046,3608377,12962477,46720095,168772741,
 610745581,2209961264,8001134385,28984697206,
 105018572887,380523339190,1378930510442,
 4997467621045,18112318334850]