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A265185 as a simple table

n a(n)
0 4
1 8
2 24
3 80
4 272
5 928
6 3168
7 10816
8 36928
9 126080
10 430464
11 1469696
12 5017856
13 17132032
14 58492416
15 199705600
16 681837568
17 2327939072
18 7948081152
19 27136446464
20 92649623552
21 316325601280
22 1080003158016
23 3687361429504
24 12589439401984
25 42983034748928

[4,8,24,80,272,928,3168,10816,36928,126080,430464,
 1469696,5017856,17132032,58492416,199705600,
 681837568,2327939072,7948081152,27136446464,
 92649623552,316325601280,1080003158016,
 3687361429504,12589439401984,42983034748928]

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Last modified March 29 08:53 EDT 2024. Contains 371268 sequences. (Running on oeis4.)