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A209071 as a simple table

na(n)
11
27
342
4366
53378
633469
7344618
83660116
939772437
10440146892
114943305065
1256200679500
13645543627296

[1,7,42,366,3378,33469,344618,3660116,39772437,
 440146892,4943305065,56200679500,645543627296]