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A299183 as a simple table

na(n)
18
229
327
475
5191
6401
7952
82258
95275
1013250
1132268
1277769
13191931
14469537
151146722
162829540
176941097
1816987427
1941832684
20102763482
21252007870
22619897823
231523184474
243738568449
259191254923
2622587057264
2755465702765
28136320314139

[8,29,27,75,191,401,952,2258,5275,13250,32268,
 77769,191931,469537,1146722,2829540,6941097,
 16987427,41832684,102763482,252007870,619897823,
 1523184474,3738568449,9191254923,22587057264,
 55465702765,136320314139]