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A118266 as a simple table

n a(n)
0 1
1 0
2 10
3 40
4 205
5 1024
6 5120
7 25600
8 128000
9 640000
10 3200000
11 16000000
12 80000000
13 400000000
14 2000000000
15 10000000000
16 50000000000
17 250000000000
18 1250000000000
19 6250000000000
20 31250000000000
21 156250000000000

[1,0,10,40,205,1024,5120,25600,128000,640000,
 3200000,16000000,80000000,400000000,2000000000,
 10000000000,50000000000,250000000000,
 1250000000000,6250000000000,31250000000000,
 156250000000000]

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Last modified March 29 10:44 EDT 2024. Contains 371268 sequences. (Running on oeis4.)