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A269994 as a simple table

na(n)
12
27
357
43391
510010183
6588972486242552
7961457184347597076119863109462
82244227167765735741796211572067153905745156229769919746729015

[2,7,57,3391,10010183,588972486242552,
 961457184347597076119863109462,
 22442271677657357417962115720671539057451562297699\
 19746729015]