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A166818 as a simple table

n a(n)
1 0
2 0
3 0
4 2016
5 23485
6 139417
7 583174
8 1954280
9 5607754
10 14335198
11 33495720
12 72817584
13 149172543
14 290727879
15 543010494

[0,0,0,2016,23485,139417,583174,1954280,5607754,
 14335198,33495720,72817584,149172543,290727879,
 543010494]

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)