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A298020 as a simple table

na(n)
11
28
39
4463
51057
64010
7570097
832903
9828667
1025743541
11431266313
1216610986697
1316089123031
141971622002613
152723872673
16159888988030039
17377543463271
1812771918729143
1919566551419628659
202983570575161357
211774565709813223

[1,8,9,463,1057,4010,570097,32903,828667,25743541,
 431266313,16610986697,16089123031,1971622002613,
 2723872673,159888988030039,377543463271,
 12771918729143,19566551419628659,2983570575161357,
 1774565709813223]