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A097685 as a simple table

na(n)
12
25
36
48
517
650
7684
8720
91452
101679
113146
1272821
13111902
14146063
15180689
16330906

[2,5,6,8,17,50,684,720,1452,1679,3146,72821,
 111902,146063,180689,330906]