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A099497
Numbers n such that
A007925
(n)=n^(n+1)-(n+1)^n is a semiprime.
+0
3
5, 7, 8, 11, 17, 18, 21, 23, 25, 27, 32, 47, 51, 56, 59, 165
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Last modified December 18 21:37 EST 2009. Contains 171024 sequences.
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