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A257546 as a simple table

n a(n)
0 1
1 1
2 2
3 6
4 24
5 40
6 80
7 140
8 280
9 504
10 1008
11 1848
12 3696
13 6864
14 13728
15 25740
16 51480
17 97240
18 194480
19 369512
20 739024
21 1410864
22 2821728
23 5408312
24 10816624
25 20801200
26 41602400
27 80233200
28 160466400
29 310235040
30 620470080
31 1202160780
32 2404321560
33 4667212440

[1,1,2,6,24,40,80,140,280,504,1008,1848,3696,6864,
 13728,25740,51480,97240,194480,369512,739024,
 1410864,2821728,5408312,10816624,20801200,
 41602400,80233200,160466400,310235040,620470080,
 1202160780,2404321560,4667212440]

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Last modified April 16 18:22 EDT 2024. Contains 371750 sequences. (Running on oeis4.)