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A189947 as a simple table

n a(n)
1 10
2 39
3 306
4 3247
5 31284
6 280284
7 2514945
8 23257218
9 219695998
10 2090461716
11 19931671853
12 190527865384
13 1828012347661
14 17602780129116
15 169999647974922
16 1645503998030853
17 15958170796668622
18 155032669862412399

[10,39,306,3247,31284,280284,2514945,23257218,
 219695998,2090461716,19931671853,190527865384,
 1828012347661,17602780129116,169999647974922,
 1645503998030853,15958170796668622,
 155032669862412399]

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Last modified September 17 06:16 EDT 2021. Contains 347478 sequences. (Running on oeis4.)