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A251010 as a simple table

na(n)
169
2530
3530
44083
510743
64083
731456
8218298
9218298
1031456
11242326
124434257
1311671623
144434257
15242326
161866789
1790065275
18623999793
19623999793
2090065275
211866789
2214381065
231829373498
2433363057374
2587861924805
2633363057374

[69,530,530,4083,10743,4083,31456,218298,218298,
 31456,242326,4434257,11671623,4434257,242326,
 1866789,90065275,623999793,623999793,90065275,
 1866789,14381065,1829373498,33363057374,
 87861924805,33363057374]