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A249317 as a simple table

na(n)
1739284
24669434
329549686
4187202568
51186724138
67525617064
747731565832
8302750656716
91920348850344
1012181094726996
1177268091007526
12490138903375862
133109148036297714
1419722655738805180
15125109414466136914

[739284,4669434,29549686,187202568,1186724138,
 7525617064,47731565832,302750656716,1920348850344,
 12181094726996,77268091007526,490138903375862,
 3109148036297714,19722655738805180,
 125109414466136914]