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A297088 as a simple table

na(n)
14
215
345
4152
5511
61681
75588
818575
961621
10204608
11679407
122255577
137488924
1424864735
1582554557
16274095080
17910042783
183021494049
1910031871012
2033307511407
21110586567109
22367166113104
231219053634447
244047464337257

[4,15,45,152,511,1681,5588,18575,61621,204608,
 679407,2255577,7488924,24864735,82554557,
 274095080,910042783,3021494049,10031871012,
 33307511407,110586567109,367166113104,
 1219053634447,4047464337257]