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A287745 as a simple table

n a(n)
0 1
1 2
2 2
3 4
4 20
5 40
6 40
7 80
8 336
9 672
10 672
11 1344
12 5440
13 10880
14 10880
15 21760
16 87296
17 174592
18 174592
19 349184
20 1397760
21 2795520
22 2795520
23 5591040
24 22368256
25 44736512
26 44736512
27 89473024
28 357908480
29 715816960
30 715816960
31 1431633920
32 5726601216
33 11453202432

[1,2,2,4,20,40,40,80,336,672,672,1344,5440,10880,
 10880,21760,87296,174592,174592,349184,1397760,
 2795520,2795520,5591040,22368256,44736512,
 44736512,89473024,357908480,715816960,715816960,
 1431633920,5726601216,11453202432]

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Last modified June 20 12:24 EDT 2021. Contains 345164 sequences. (Running on oeis4.)