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A331408 as a simple table

n a(n)
1 0
2 0
3 0
4 0
5 4
6 8
7 32
8 64
9 160
10 320
11 640
12 1280
13 2240
14 4480
15 7168
16 14336
17 21504
18 43008
19 61440
20 122880
21 168960
22 337920
23 450560
24 901120
25 1171456
26 2342912
27 2981888
28 5963776
29 7454720
30 14909440
31 18350080
32 36700160
33 44564480
34 89128960
35 106954752
36 213909504
37 254017536
38 508035072
39 597688320

[0,0,0,0,4,8,32,64,160,320,640,1280,2240,4480,
 7168,14336,21504,43008,61440,122880,168960,337920,
 450560,901120,1171456,2342912,2981888,5963776,
 7454720,14909440,18350080,36700160,44564480,
 89128960,106954752,213909504,254017536,508035072,
 597688320]

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Last modified August 14 07:59 EDT 2020. Contains 336477 sequences. (Running on oeis4.)