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A251162 as a simple table

na(n)
12658
232083
3231618
41452052
510194430
677352519
7572903455
84142817734
930044582531
10219357013930
111601638223039
1211674417162603
1385078077007837
14620268051744714
154522530953490649
1632971746686929047
17240374363857435600

[2658,32083,231618,1452052,10194430,77352519,
 572903455,4142817734,30044582531,219357013930,
 1601638223039,11674417162603,85078077007837,
 620268051744714,4522530953490649,
 32971746686929047,240374363857435600]