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A233857 as a simple table

na(n)
1104576
2699984
34319616
441245344
5337818824
64191443728
740029477624
8580040050696
95963080729144
1092966216647592
11989238351719592
1215886738589728660
13171995861479883856
142792218511889123828

[104576,699984,4319616,41245344,337818824,
 4191443728,40029477624,580040050696,5963080729144,
 92966216647592,989238351719592,15886738589728660,
 171995861479883856,2792218511889123828]