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A221187
as a simple table
n
a(n)
1
4
2
107
3
2648
4
51924
5
928133
6
15638551
7
256020803
[4,107,2648,51924,928133,15638551,256020803]
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Last modified April 25 04:42 EDT 2024. Contains 371964 sequences. (Running on oeis4.)
