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A103435 as a simple table

n a(n)
0 0
1 2
2 4
3 16
4 48
5 160
6 512
7 1664
8 5376
9 17408
10 56320
11 182272
12 589824
13 1908736
14 6176768
15 19988480
16 64684032
17 209321984
18 677380096
19 2192048128
20 7093616640
21 22955425792
22 74285318144
23 240392339456
24 777925951488
25 2517421260800

[0,2,4,16,48,160,512,1664,5376,17408,56320,182272,
 589824,1908736,6176768,19988480,64684032,
 209321984,677380096,2192048128,7093616640,
 22955425792,74285318144,240392339456,777925951488,
 2517421260800]

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Last modified April 23 18:16 EDT 2024. Contains 371916 sequences. (Running on oeis4.)