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A218557 as a simple table

na(n)
02
12
23
35
47
511
619
729
847
979
10127
11199
12331
13521
14853
151367
162207
173571
185779
199349
2015131
2124481
2239607
2364081
24103687
25167771
26271451
27439217
28710663
291149857
301860503
313010349
324870861
337881221
3412752053
3520633279
3633385291
3754018521
3887403831

[2,2,3,5,7,11,19,29,47,79,127,199,331,521,853,
 1367,2207,3571,5779,9349,15131,24481,39607,64081,
 103687,167771,271451,439217,710663,1149857,
 1860503,3010349,4870861,7881221,12752053,20633279,
 33385291,54018521,87403831]