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A112633 as a simple table

na(n)
13
27
319
431
5107
6127
7607
81279
92203
104423
1186243
12110503
13216091
14756839
151257787
1620996011
1724036583
1825964951
1937156667

[3,7,19,31,107,127,607,1279,2203,4423,86243,
 110503,216091,756839,1257787,20996011,24036583,
 25964951,37156667]