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A045915 as a simple table

n a(n)
2 4
3 24
4 144
5 908
6 6117
7 44159
8 332775
9 2592589
10 20758019
11 169922924
12 1416703346
13 11992874160
14 10283824252

[4,24,144,908,6117,44159,332775,2592589,20758019,
 169922924,1416703346,11992874160,10283824252]

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Last modified August 19 18:08 EDT 2024. Contains 375310 sequences. (Running on oeis4.)