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A247955 as a simple table

na(n)
17
213
331
41093
52801
65113
78011
817293
930103
1030941
1186143
12459007
13552793
14579883
15732541
161191373
173500201
183730693
194534771
205168803
215333791
227450171
2310378063
2425646167
2525882657
2628792661
2730266503
2843553401
2948037081
3052265671
3156964757
3262433703
3365504743
3467856407
3576413823
3677572057

[7,13,31,1093,2801,5113,8011,17293,30103,30941,
 86143,459007,552793,579883,732541,1191373,3500201,
 3730693,4534771,5168803,5333791,7450171,10378063,
 25646167,25882657,28792661,30266503,43553401,
 48037081,52265671,56964757,62433703,65504743,
 67856407,76413823,77572057]