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A296586 as a simple table

na(n)
121
2480
36241
4125765
52607478
652756072
71109882746
823359296497
9492457987101
1010402250973413
11219775565244891
124644590743236824
1398165206674288770
142074840058451866478
1543855171635171730011
16926958389641748039690

[21,480,6241,125765,2607478,52756072,1109882746,
 23359296497,492457987101,10402250973413,
 219775565244891,4644590743236824,
 98165206674288770,2074840058451866478,
 43855171635171730011,926958389641748039690]