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A272396 as a simple table

n a(n)
0 1
1 8
2 40
3 204
4 888
5 3580
6 14648
7 59792
8 239668
9 960664
10 3844852
11 15388808
12 61571632
13 246305788
14 985328220
15 3941279788 

[1,8,40,204,888,3580,14648,59792,239668,960664,
 3844852,15388808,61571632,246305788,985328220,
 3941279788]

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Last modified September 10 18:45 EDT 2024. Contains 375793 sequences. (Running on oeis4.)