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A168189 as a simple table

n a(n)
0 0
1 1
2 1028
3 88587
4 2097184
5 24414125
6 181398636
7 988663543
8 4294967552
9 15690530169
10 50000000500
11 142655835971
12 371504186208
13 896080198117
14 2024782586204
15 4324877931375
16 8796093024256
17 17135948156273
18 32134205042532
19 58245129452539
20 102400000004000

[0,1,1028,88587,2097184,24414125,181398636,
 988663543,4294967552,15690530169,50000000500,
 142655835971,371504186208,896080198117,
 2024782586204,4324877931375,8796093024256,
 17135948156273,32134205042532,58245129452539,
 102400000004000]

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Last modified March 28 13:19 EDT 2024. Contains 371254 sequences. (Running on oeis4.)