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A156474
as a simple table
n
a(n)
4
4
5
7
6
78
7
660
8
19896
9
352350
10
29182380
11
1150637340
12
215977376730
[4,7,78,660,19896,352350,29182380,1150637340, 215977376730]
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Last modified April 19 17:39 EDT 2024. Contains 371797 sequences. (Running on oeis4.)