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A028894 as a simple table

na(n)
11
25
323
495
5381
61527
76109
824439
997759
10391037
111564151
126256607
1325026429
14100105719
15400422877
161601691511
176406766047
1825627064189
19102508256759
20410033027037
211640132108151
226560528432607
2326242113730429

[1,5,23,95,381,1527,6109,24439,97759,391037,
 1564151,6256607,25026429,100105719,400422877,
 1601691511,6406766047,25627064189,102508256759,
 410033027037,1640132108151,6560528432607,
 26242113730429]