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A081415 as a simple table

na(n)
1683783
21056317
31100261
42241709
52815301
64746359
710009049
812003209
913810981
1014907649
1115403009
1215730067
1316595081
1417518201
1519755301
1620378327
1721006487
1821574453
1921579983
2022237121
2122625179
2225876901
2326018791
2426354201
2527188141
2628469461

[683783,1056317,1100261,2241709,2815301,4746359,
 10009049,12003209,13810981,14907649,15403009,
 15730067,16595081,17518201,19755301,20378327,
 21006487,21574453,21579983,22237121,22625179,
 25876901,26018791,26354201,27188141,28469461]