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A288980 as a simple table

na(n)
01
11
23
311
415
57
6127
7207
8127
9927
101279
111599
123583
139343
1419455
1526879
1647103
17168447
18323583
19467967
20647167
212770943
224964351
237901183
249404415
2548832511
2674383359
27119685119
28167641087
29707035135
301270611967
311988689919
322482503679
3311686510591

[1,1,3,11,15,7,127,207,127,927,1279,1599,3583,
 9343,19455,26879,47103,168447,323583,467967,
 647167,2770943,4964351,7901183,9404415,48832511,
 74383359,119685119,167641087,707035135,1270611967,
 1988689919,2482503679,11686510591]