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A280994 as a simple table

na(n)
11
22
33
44
55
67
78
89
911
1016
1117
1219
1323
1431
1532
1653
1759
1867
1925
2027
2149
2264
2383
24127
25131
26241
27277
28331
2997
30103
31128
32227
33311
34431
35709
36739
371523
381787
392221
4081
41121
42256
43289
44361
45509
46563
47719
481433
492063
503001
515381
525623
5312763
5415299
5519577

[1,2,3,4,5,7,8,9,11,16,17,19,23,31,32,53,59,67,25,
 27,49,64,83,127,131,241,277,331,97,103,128,227,
 311,431,709,739,1523,1787,2221,81,121,256,289,361,
 509,563,719,1433,2063,3001,5381,5623,12763,15299,
 19577]