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A248248 as a simple table

na(n)
04
13
28
373
49617
5111131795
626084503201670555
74157115685705509978962832510685264
8147322611763368949503218439363472434087529649552239912252006589221170
971615688159358613181735412731094718668653530665367791449989367208307390123881747858538896669229709245658779872053034609094278277577821587

[4,3,8,73,9617,111131795,26084503201670555,
 4157115685705509978962832510685264,
 14732261176336894950321843936347243408752964955223\
 9912252006589221170,
 71615688159358613181735412731094718668653530665367\
 79144998936720830739012388174785853889666922970924\
 5658779872053034609094278277577821587]