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A004208 as a simple table

na(n)
11
25
337
4353
54081
655205
7854197
814876033
9288018721
106138913925
11142882295557
123606682364513
1398158402127761
142865624738913445
1589338394736560917
162962542872271918593
17104128401379446177601

[1,5,37,353,4081,55205,854197,14876033,288018721,
 6138913925,142882295557,3606682364513,
 98158402127761,2865624738913445,89338394736560917,
 2962542872271918593,104128401379446177601]