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A230702 as a simple table

n a(n)
1 8
2 28
3 244
4 800
5 6576
6 21076
7 173428
8 554040
9 4558536
10 14555468
11 119758148
12 382358832
13 3145930352
14 10044068932
15 82639468964
16 263844008200
17 2170826159272
18 6930820136252
19 57024624645332
20 182063126310336
21 1497958570841456

[8,28,244,800,6576,21076,173428,554040,4558536,
 14555468,119758148,382358832,3145930352,
 10044068932,82639468964,263844008200,
 2170826159272,6930820136252,57024624645332,
 182063126310336,1497958570841456]

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Last modified April 23 12:44 EDT 2024. Contains 371913 sequences. (Running on oeis4.)