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A206367 as a simple table

n a(n)
1 3
2 15
3 18
4 36
5 72
6 255
7 1152
8 2709
9 65535
10 294912
11 4294967295
12 4380480000 

[3,15,18,36,72,255,1152,2709,65535,294912,
 4294967295,4380480000]

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Last modified July 16 01:32 EDT 2024. Contains 374343 sequences. (Running on oeis4.)