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A231840 as a simple table

n a(n)
1 16
2 50
3 188
4 760
5 3309
6 14666
7 64607
8 283479
9 1243280
10 5452114
11 23905237
12 104828007
13 459770373
14 2016638186
15 8845269109
16 38796696140
17 170170211095
18 746407664707
19 3273942709889
20 14360456936977
21 62989372397071

[16,50,188,760,3309,14666,64607,283479,1243280,
 5452114,23905237,104828007,459770373,2016638186,
 8845269109,38796696140,170170211095,746407664707,
 3273942709889,14360456936977,62989372397071]

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Last modified September 29 02:55 EDT 2022. Contains 357082 sequences. (Running on oeis4.)