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A183321 as a simple table

na(n)
189
21097
328959
4498825
510288475
6190243099
73674032121
868795107993
91301324910599
1024374459510955
11457521652409443
128556633331945529
13160077250226203655
142989991870865523923
1555846494235069318769

[89,1097,28959,498825,10288475,190243099,
 3674032121,68795107993,1301324910599,
 24374459510955,457521652409443,8556633331945529,
 160077250226203655,2989991870865523923,
 55846494235069318769]