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A259402 as a simple table

na(n)
1287
2532
317145051
432963672
51106094475927
62126616990876
771358579001465427
8137196568515066592
94603627364594444737551
108851099419054387781412
11296998415728087428795555787
12571019827783678204813603176
1319160555787678205016722039960967

[287,532,17145051,32963672,1106094475927,
 2126616990876,71358579001465427,
 137196568515066592,4603627364594444737551,
 8851099419054387781412,
 296998415728087428795555787,
 571019827783678204813603176,
 19160555787678205016722039960967]