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A184513 as a simple table

na(n)
11
25
319
489
5351
61601
76469
828129
9116119
10491865
112032317
128519969
1335154029
14146022609
15601843209
162485436161
1710218366631
1842036132185
19172427570701
20707155973729
212894803671877
2211843754333361
2348394276165561
24197620176468097
25806190115015101
263286819758296625

[1,5,19,89,351,1601,6469,28129,116119,491865,
 2032317,8519969,35154029,146022609,601843209,
 2485436161,10218366631,42036132185,172427570701,
 707155973729,2894803671877,11843754333361,
 48394276165561,197620176468097,806190115015101,
 3286819758296625]