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A254581 as a simple table

na(n)
115051
296756
3774168
45852880
542278366
6305579066
72204567802
815863354126
9114154509258
10821370106542
115908977818626
1242506746305410
13305774829560554
142199561125832150
1515822198618645370
16113813904113232982

[15051,96756,774168,5852880,42278366,305579066,
 2204567802,15863354126,114154509258,821370106542,
 5908977818626,42506746305410,305774829560554,
 2199561125832150,15822198618645370,
 113813904113232982]